{"title":"All Furnace Filters","description":"\u003cp\u003eBrowse every furnace filter size Filterflow ships, in MERV 8 and MERVE 11. Subscribe monthly or order one-time.\u003c\/p\u003e","products":[{"product_id":"16x25x1-furnace-filter","title":"16x25x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 16x25x1. Actual dimensions: 15.5 x 24.5 x 0.75 inches (15½ × 24½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e16x25x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 15.5 x 24.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e16x25x1 (16×25×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e15.5 x 24.5 x 0.75 inches (15½ × 24½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43330834497625,"sku":"16x25x1-M8-4P","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43330834563161,"sku":"16x25x1-M8-6P","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43346619367513,"sku":"16x25x1-M8-12P","price":127.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379313672281,"sku":"16x25x1-M11-4P","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379313705049,"sku":"16x25x1-M11-6P","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379313737817,"sku":"16x25x1-M11-12P","price":128.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"16x20x1-furnace-filter","title":"16x20x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 16x20x1. Actual dimensions: 15.5 x 19.5 x 0.75 inches (15½ × 19½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e16x20x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 15.5 x 19.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e16x20x1 (16×20×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e15.5 x 19.5 x 0.75 inches (15½ × 19½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43361560494169,"sku":"16x20x1-M8-4P","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43361560526937,"sku":"16x20x1-M8-6P","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43361560559705,"sku":"16x20x1-M8-12P","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379315212377,"sku":"16x20x1-M11-4P","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379315245145,"sku":"16x20x1-M11-6P","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379315277913,"sku":"16x20x1-M11-12P","price":125.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"20x25x1-furnace-filter","title":"20x25x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 20x25x1. Actual dimensions: 19.5 x 24.5 x 0.75 inches (19½ × 24½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e20x25x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 19.5 x 24.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e20x25x1 (20×25×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e19.5 x 24.5 x 0.75 inches (19½ × 24½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372039471193,"sku":"20x25x1-M8-4P","price":94.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372039503961,"sku":"20x25x1-M8-6P","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372039536729,"sku":"20x25x1-M8-12P","price":138.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379315310681,"sku":"20x25x1-M11-4P","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379315343449,"sku":"20x25x1-M11-6P","price":112.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379315376217,"sku":"20x25x1-M11-12P","price":153.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"20x20x1-furnace-filter","title":"20x20x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 20x20x1. Actual dimensions: 19.5 x 19.5 x 0.75 inches (19½ × 19½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in Merv 8 and Merv 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e20x20x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 19.5 x 19.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e20x20x1 (20×20×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e19.5 x 19.5 x 0.75 inches (19½ × 19½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372421054553,"sku":"20x20x1-M8-4P","price":92.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372421087321,"sku":"20x20x1-M8-6P","price":101.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372421120089,"sku":"20x20x1-M8-12P","price":132.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379315408985,"sku":"20x20x1-M11-4P","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379315441753,"sku":"20x20x1-M11-6P","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379315474521,"sku":"20x20x1-M11-12P","price":143.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-square-thin.webp?v=1781010153"},{"product_id":"14x20x1-furnace-filter","title":"14x20x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 14x20x1. Actual dimensions: 13.5 x 19.5 x 0.75 inches (13½ × 19½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in Merv 8 and Merv 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e14x20x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 13.5 x 19.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e14x20x1 (14×20×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e13.5 x 19.5 x 0.75 inches (13½ × 19½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372491178073,"sku":"14x20x1-M8-4P","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372491210841,"sku":"14x20x1-M8-6P","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372491243609,"sku":"14x20x1-M8-12P","price":122.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379315507289,"sku":"14x20x1-M11-4P","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379315540057,"sku":"14x20x1-M11-6P","price":100.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379315572825,"sku":"14x20x1-M11-12P","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"14x25x1-furnace-filter","title":"14x25x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 14x25x1. Actual dimensions: 13.5 x 24.5 x 0.75 inches (13½ × 24½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e14x25x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 13.5 x 24.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e14x25x1 (14×25×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e13.5 x 24.5 x 0.75 inches (13½ × 24½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372718817369,"sku":"14x25x1-M8-4P","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372718850137,"sku":"14x25x1-M8-6P","price":101.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372718882905,"sku":"14x25x1-M8-12P","price":113.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379315638361,"sku":"14x25x1-M11-4P","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379315671129,"sku":"14x25x1-M11-6P","price":125.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379315703897,"sku":"14x25x1-M11-12P","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"25x25x1-furnace-filter","title":"25x25x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 25x25x1. Actual dimensions: 24.5 x 24.5 x 0.75 inches (24½ × 24½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e25x25x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 24.5 x 24.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e25x25x1 (25×25×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e24.5 x 24.5 x 0.75 inches (24½ × 24½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372718948441,"sku":"25x25x1-M8-4P","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372718981209,"sku":"25x25x1-M8-6P","price":108.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372719013977,"sku":"25x25x1-M8-12P","price":148.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379315736665,"sku":"25x25x1-M11-4P","price":126.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379315769433,"sku":"25x25x1-M11-6P","price":152.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379315802201,"sku":"25x25x1-M11-12P","price":235.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-square-thin.webp?v=1781010153"},{"product_id":"12x24x1-furnace-filter","title":"12x24x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 12x24x1. Actual dimensions: 11.5 x 23.5 x 0.75 inches (11½ × 23½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e12x24x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 11.5 x 23.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e12x24x1 (12×24×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e11.5 x 23.5 x 0.75 inches (11½ × 23½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372719046745,"sku":"12x24x1-M8-4P","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372719079513,"sku":"12x24x1-M8-6P","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372719112281,"sku":"12x24x1-M8-12P","price":122.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379315834969,"sku":"12x24x1-M11-4P","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379315867737,"sku":"12x24x1-M11-6P","price":100.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379315900505,"sku":"12x24x1-M11-12P","price":130.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"12x12x1-furnace-filter","title":"12x12x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 12x12x1. Actual dimensions: 11.5 x 11.5 x 0.75 inches (11½ × 11½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e12x12x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 11.5 x 11.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e12x12x1 (12×12×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e11.5 x 11.5 x 0.75 inches (11½ × 11½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372719145049,"sku":"12x12x1-M8-4P","price":85.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372719177817,"sku":"12x12x1-M8-6P","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372719210585,"sku":"12x12x1-M8-12P","price":111.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379316293721,"sku":"12x12x1-M11-4P","price":86.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379316326489,"sku":"12x12x1-M11-6P","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379316359257,"sku":"12x12x1-M11-12P","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-square-thin.webp?v=1781010153"},{"product_id":"14x14x1-furnace-filter","title":"14x14x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 14x14x1. Actual dimensions: 13.5 x 13.5 x 0.75 inches (13½ × 13½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e14x14x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 13.5 x 13.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e14x14x1 (14×14×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e13.5 x 13.5 x 0.75 inches (13½ × 13½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372724584537,"sku":"14x14x1-M8-4P","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372724617305,"sku":"14x14x1-M8-6P","price":94.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372724650073,"sku":"14x14x1-M8-12P","price":116.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379316392025,"sku":"14x14x1-M11-4P","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379316424793,"sku":"14x14x1-M11-6P","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379316457561,"sku":"14x14x1-M11-12P","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-square-thin.webp?v=1781010153"},{"product_id":"14x24x1-furnace-filter","title":"14x24x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 14x24x1. Actual dimensions: 13.5 x 23.5 x 0.75 inches (13½ × 23½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e14x24x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 13.5 x 23.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e14x24x1 (14×24×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e13.5 x 23.5 x 0.75 inches (13½ × 23½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372724682841,"sku":"14x24x1-M8-4P","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372724715609,"sku":"14x24x1-M8-6P","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372724748377,"sku":"14x24x1-M8-12P","price":125.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379316490329,"sku":"14x24x1-M11-4P","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379316523097,"sku":"14x24x1-M11-6P","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379316555865,"sku":"14x24x1-M11-12P","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"15x20x1-furnace-filter","title":"15x20x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 15x20x1. Actual dimensions: 14.5 x 19.5 x 0.75 inches (14½ × 19½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e15x20x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 14.5 x 19.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e15x20x1 (15×20×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e14.5 x 19.5 x 0.75 inches (14½ × 19½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372724781145,"sku":"15x20x1-M8-4P","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372724813913,"sku":"15x20x1-M8-6P","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372724846681,"sku":"15x20x1-M8-12P","price":124.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379316588633,"sku":"15x20x1-M11-4P","price":106.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379316621401,"sku":"15x20x1-M11-6P","price":122.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379316654169,"sku":"15x20x1-M11-12P","price":173.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"18x20x1-furnace-filter","title":"18x20x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 18x20x1. Actual dimensions: 17.5 x 19.5 x 0.75 inches (17½ × 19½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e18x20x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 17.5 x 19.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e18x20x1 (18×20×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e17.5 x 19.5 x 0.75 inches (17½ × 19½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372724879449,"sku":"18x20x1-M8-4P","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372724912217,"sku":"18x20x1-M8-6P","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372724944985,"sku":"18x20x1-M8-12P","price":127.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379316686937,"sku":"18x20x1-M11-4P","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379316719705,"sku":"18x20x1-M11-6P","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379316752473,"sku":"18x20x1-M11-12P","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"18x24x1-furnace-filter","title":"18x24x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 18x24x1. Actual dimensions: 17.5 x 23.5 x 0.75 inches (17½ × 23½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e18x24x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 17.5 x 23.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e18x24x1 (18×24×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e17.5 x 23.5 x 0.75 inches (17½ × 23½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372731203673,"sku":"18x24x1-M8-4P","price":92.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372731236441,"sku":"18x24x1-M8-6P","price":101.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372731269209,"sku":"18x24x1-M8-12P","price":133.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379316785241,"sku":"18x24x1-M11-4P","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379316818009,"sku":"18x24x1-M11-6P","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379316850777,"sku":"18x24x1-M11-12P","price":145.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"18x25x1-furnace-filter","title":"18x25x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 18x25x1. Actual dimensions: 17.5 x 24.5 x 0.75 inches (17½ × 24½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e18x25x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 17.5 x 24.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e18x25x1 (18×25×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e17.5 x 24.5 x 0.75 inches (17½ × 24½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372731301977,"sku":"18x25x1-M8-4P","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372731334745,"sku":"18x25x1-M8-6P","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372731367513,"sku":"18x25x1-M8-12P","price":128.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379316883545,"sku":"18x25x1-M11-4P","price":118.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379316916313,"sku":"18x25x1-M11-6P","price":140.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379316949081,"sku":"18x25x1-M11-12P","price":211.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"20x30x1-furnace-filter","title":"20x30x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 20x30x1. Actual dimensions: 19.5 x 29.5 x 0.75 inches (19½ × 29½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e20x30x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 19.5 x 29.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e20x30x1 (20×30×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e19.5 x 29.5 x 0.75 inches (19½ × 29½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372731433049,"sku":"20x30x1-M8-4P","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372731465817,"sku":"20x30x1-M8-6P","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372731498585,"sku":"20x30x1-M8-12P","price":145.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317047385,"sku":"20x30x1-M11-4P","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317080153,"sku":"20x30x1-M11-6P","price":117.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317112921,"sku":"20x30x1-M11-12P","price":165.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"24x24x1-furnace-filter","title":"24x24x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 24x24x1. Actual dimensions: 23.5 x 23.5 x 0.75 inches (23½ × 23½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e24x24x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 23.5 x 23.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e24x24x1 (24×24×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e23.5 x 23.5 x 0.75 inches (23½ × 23½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372731531353,"sku":"24x24x1-M8-4P","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372731564121,"sku":"24x24x1-M8-6P","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372731596889,"sku":"24x24x1-M8-12P","price":147.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317145689,"sku":"24x24x1-M11-4P","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317178457,"sku":"24x24x1-M11-6P","price":126.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317211225,"sku":"24x24x1-M11-12P","price":182.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-square-thin.webp?v=1781010153"},{"product_id":"24x30x1-furnace-filter","title":"24x30x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 24x30x1. Actual dimensions: 23.5 x 29.5 x 0.75 inches (23½ × 29½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e24x30x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 23.5 x 29.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e24x30x1 (24×30×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e23.5 x 29.5 x 0.75 inches (23½ × 29½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372740280409,"sku":"24x30x1-M8-4P","price":83.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372740313177,"sku":"24x30x1-M8-6P","price":111.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372740345945,"sku":"24x30x1-M8-12P","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317243993,"sku":"24x30x1-M11-4P","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317276761,"sku":"24x30x1-M11-6P","price":122.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317309529,"sku":"24x30x1-M11-12P","price":176.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"10x20x1-furnace-filter","title":"10x20x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 10x20x1. Actual dimensions: 9.5 x 19.5 x 0.75 inches (9½ × 19½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e10x20x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 9.5 x 19.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e10x20x1 (10×20×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e9.5 x 19.5 x 0.75 inches (9½ × 19½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372740378713,"sku":"10x20x1-M8-4P","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372740411481,"sku":"10x20x1-M8-6P","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372740444249,"sku":"10x20x1-M8-12P","price":134.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317342297,"sku":"10x20x1-M11-4P","price":102.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317375065,"sku":"10x20x1-M11-6P","price":117.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317407833,"sku":"10x20x1-M11-12P","price":162.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"10x25x1-furnace-filter","title":"10x25x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 10x25x1. Actual dimensions: 9.5 x 24.5 x 0.75 inches (9½ × 24½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e10x25x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 9.5 x 24.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e10x25x1 (10×25×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e9.5 x 24.5 x 0.75 inches (9½ × 24½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372740477017,"sku":"10x25x1-M8-4P","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372740509785,"sku":"10x25x1-M8-6P","price":120.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372740542553,"sku":"10x25x1-M8-12P","price":168.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317440601,"sku":"10x25x1-M11-4P","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317473369,"sku":"10x25x1-M11-6P","price":119.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317506137,"sku":"10x25x1-M11-12P","price":167.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"12x20x1-furnace-filter","title":"12x20x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 12x20x1. Actual dimensions: 11.5 x 19.5 x 0.75 inches (11½ × 19½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e12x20x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 11.5 x 19.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e12x20x1 (12×20×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e11.5 x 19.5 x 0.75 inches (11½ × 19½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372740608089,"sku":"12x20x1-M8-4P","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372740640857,"sku":"12x20x1-M8-6P","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372740673625,"sku":"12x20x1-M8-12P","price":118.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317538905,"sku":"12x20x1-M11-4P","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317571673,"sku":"12x20x1-M11-6P","price":119.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317604441,"sku":"12x20x1-M11-12P","price":166.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"12x25x1-furnace-filter","title":"12x25x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 12x25x1. Actual dimensions: 11.5 x 24.5 x 0.75 inches (11½ × 24½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e12x25x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 11.5 x 24.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e12x25x1 (12×25×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e11.5 x 24.5 x 0.75 inches (11½ × 24½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372744147033,"sku":"12x25x1-M8-4P","price":106.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372744179801,"sku":"12x25x1-M8-6P","price":122.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372744212569,"sku":"12x25x1-M8-12P","price":173.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317637209,"sku":"12x25x1-M11-4P","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317669977,"sku":"12x25x1-M11-6P","price":124.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317702745,"sku":"12x25x1-M11-12P","price":178.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"16x30x1-furnace-filter","title":"16x30x1 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 16x30x1. Actual dimensions: 15.5 x 29.5 x 0.75 inches (15½ × 29½ × ¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 1-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e16x30x1\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 15.5 x 29.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x1, 20x25x1, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e16x30x1 (16×30×1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e15.5 x 29.5 x 0.75 inches (15½ × 29½ × ¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 4-pack","offer_id":43372744245337,"sku":"16x30x1-M8-4P","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 6-pack","offer_id":43372744278105,"sku":"16x30x1-M8-6P","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 12-pack","offer_id":43372744310873,"sku":"16x30x1-M8-12P","price":136.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379317866585,"sku":"16x30x1-M11-4P","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 6-pack","offer_id":43379317899353,"sku":"16x30x1-M11-6P","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 12-pack","offer_id":43379317932121,"sku":"16x30x1-M11-12P","price":143.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-thin-merv-8-single.webp?v=1779393296"},{"product_id":"16x20x4-furnace-filter","title":"16x20x4 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 16x20x4. Actual dimensions: 15.5 x 19.5 x 3.75 inches (15½ × 19½ × 3¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 4-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e16x20x4\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 15.5 x 19.5 x 3.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x4, 20x25x4, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e16x20x4 (16×20×4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e15.5 x 19.5 x 3.75 inches (15½ × 19½ × 3¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 2-pack","offer_id":43372744343641,"sku":"16x20x4-M8-2P","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 3-pack","offer_id":43372744376409,"sku":"16x20x4-M8-3P","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 4-pack","offer_id":43372744409177,"sku":"16x20x4-M8-4P","price":105.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 2-pack","offer_id":43379317964889,"sku":"16x20x4-M11-2P","price":89.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 3-pack","offer_id":43379317997657,"sku":"16x20x4-M11-3P","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379318030425,"sku":"16x20x4-M11-4P","price":108.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-rectangle-thick.webp?v=1781011726"},{"product_id":"20x25x4-furnace-filter","title":"20x25x4 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 20x25x4. Actual dimensions: 19.5 x 24.5 x 3.75 inches (19½ × 24½ × 3¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 4-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e20x25x4\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 19.5 x 24.5 x 3.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x4, 20x25x4, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e20x25x4 (20×25×4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e19.5 x 24.5 x 3.75 inches (19½ × 24½ × 3¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 2-pack","offer_id":43372744441945,"sku":"20x25x4-M8-2P","price":92.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 3-pack","offer_id":43372744474713,"sku":"20x25x4-M8-3P","price":105.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 4-pack","offer_id":43372744507481,"sku":"20x25x4-M8-4P","price":117.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 2-pack","offer_id":43379318063193,"sku":"20x25x4-M11-2P","price":101.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 3-pack","offer_id":43379318095961,"sku":"20x25x4-M11-3P","price":118.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379318128729,"sku":"20x25x4-M11-4P","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-rectangle-thick.webp?v=1781011726"},{"product_id":"20x20x4-furnace-filter","title":"20x20x4 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 20x20x4. Actual dimensions: 19.5 x 19.5 x 3.75 inches (19½ × 19½ × 3¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 4-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e20x20x4\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 19.5 x 19.5 x 3.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x4, 20x25x4, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e20x20x4 (20×20×4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e19.5 x 19.5 x 3.75 inches (19½ × 19½ × 3¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 2-pack","offer_id":43372750340185,"sku":"20x20x4-M8-2P","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 3-pack","offer_id":43372750372953,"sku":"20x20x4-M8-3P","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 4-pack","offer_id":43372750405721,"sku":"20x20x4-M8-4P","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 2-pack","offer_id":43379318161497,"sku":"20x20x4-M11-2P","price":96.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 3-pack","offer_id":43379318194265,"sku":"20x20x4-M11-3P","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379318227033,"sku":"20x20x4-M11-4P","price":122.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-filter-square-thick-merv-8-single.webp?v=1781012288"},{"product_id":"16x25x4-furnace-filter","title":"16x25x4 Furnace Filter","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1a2b4a; line-height: 1.6; font-size: 15px;\"\u003e\n\u003cdiv style=\"background: #F3F5F9; border-left: 3px solid #B85838; padding: 16px 20px; margin: 0 0 24px; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: #8a3f25;\"\u003eFurnace Filter Subscription\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 16px; color: #1a2b4a; font-weight: 600;\"\u003eNominal size: 16x25x4. Actual dimensions: 15.5 x 24.5 x 3.75 inches (15½ × 24½ × 3¾).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin: 0 0 24px;\"\u003eA pleated 4-inch furnace filter delivered monthly to every unit in your property — with SMS install reminders sent to tenants, and automatic confirmation back to you. Available in MERV 8 and MERV 11.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 8px;\"\u003eDoes this fit your furnace?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 12px; color: #4a5970;\"\u003eThis filter is for HVAC slots labeled \u003cstrong style=\"color: #1a2b4a;\"\u003e16x25x4\u003c\/strong\u003e (the standard \"nominal\" size). The actual filter measures 15.5 x 24.5 x 3.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #4a5970;\"\u003eTo confirm fit:\u003c\/p\u003e\n\u003col style=\"margin: 0 0 24px; padding-left: 24px; color: #4a5970;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003ePull out your current filter from the unit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eLook for the size printed on the cardboard frame — typically the nominal size (16x25x4, 20x25x4, etc.).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003eIf you can't find a size label, measure the slot opening with a tape measure. The nominal size should be ½ inch larger than your slot dimensions in each direction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; color: #1a2b4a; letter-spacing: -0.015em; margin: 32px 0 12px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"background: #FFFFFF; border: 1px solid rgba(26,43,74,0.10); border-radius: 10px; overflow: hidden; margin: 0 0 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; width: 200px; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eNominal size\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e16x25x4 (16×25×4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eActual dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e15.5 x 24.5 x 3.75 inches (15½ × 24½ × 3¾)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFilter media\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003ePleated synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eFrame\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eBeverage board (recyclable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eMERV options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003e8, 11 — \u003ca href=\"\/pages\/merv-guide\" style=\"color: #b85838; text-decoration: underline;\"\u003esee MERV guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eReplacement frequency\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600; border-bottom: 1px solid rgba(26,43,74,0.06);\"\u003eEvery 30 days (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 16px; color: #6b7a93;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 16px; color: #1a2b4a; font-weight: 600;\"\u003eMost residential furnaces, central AC, and air handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"filter-flow","offers":[{"title":"Merv 8 \/ 2-pack","offer_id":43372750438489,"sku":"16x25x4-M8-2P","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 3-pack","offer_id":43372750471257,"sku":"16x25x4-M8-3P","price":100.99,"currency_code":"USD","in_stock":true},{"title":"Merv 8 \/ 4-pack","offer_id":43372750504025,"sku":"16x25x4-M8-4P","price":111.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 2-pack","offer_id":43379318259801,"sku":"16x25x4-M11-2P","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 3-pack","offer_id":43379318292569,"sku":"16x25x4-M11-3P","price":110.99,"currency_code":"USD","in_stock":true},{"title":"Merv 11 \/ 4-pack","offer_id":43379318325337,"sku":"16x25x4-M11-4P","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/2229\/1545\/files\/filter-flow-furnace-filter-subscription-merv-8-rectangle-thick.webp?v=1781011726"}],"url":"https:\/\/filter-flow.com\/collections\/all-furnace-filters.oembed?page=2","provider":"Filterflow","version":"1.0","type":"link"}