• Filterflow MERV 8 air filter packaging on a white background
  • Filtration information on a MERV 8 furnace filter
  • Layers of a MERV 8 furnace filter
  • Close up picture of a MERV 8 furnace filter
  • How it works: a year of filters ships in one box, your contact gets a text the day a filter is due and taps a link to confirm, and you get a text when it's done.
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 FILTER SUBSCRIPTION · A YEAR’S SUPPLY, SHIPPED FREE 

20x22x1 Furnace Filter

20x22x1 Furnace Filter

$89.99
$89.99
Sale Sold out
FREE Shipping — included on every subscription.

Set it once. Never think about this filter again.

  • A year of filters ships now
  • A text the day one's due
  • One tap confirms
MERV Rating
Quantity

Prefer a one-time purchase instead of a yearly plan? Tap here.

Every 1 year

Auto-renews, skip or cancel anytime.

Every 1 year

Auto-renews, skip or cancel anytime.

Every 1 year

Auto-renews, skip or cancel anytime.

Every 1 year

Auto-renews, skip or cancel anytime.

Every 1 year

Auto-renews, skip or cancel anytime.

Every 1 year

Auto-renews, skip or cancel anytime.

To add to cart, go to the product page and select a purchase option
The shipping address you enter at checkout is the property address. Filters ship there, and install reminders are tied to it. Ordering for more than one property? Place a separate order for each. Two filters for the same property? Add both to this order.

Wrong size? Return it within 14 days for a refund. Cancel anytime. 

Furnace Filter Subscription

Nominal size: 20x22x1. Actual dimensions: 19.5 x 21.5 x 0.75 inches (19½ × 21½ × ¾).

A pleated 1-inch furnace filter subscription: a year's supply ships in one box, and whoever changes the filter — you, a tenant, a building contact — gets a text the day it's due, with a one-tap confirmation back to you. Set it once and never think about this filter again. Available in MERV 8 and MERV 11.

Does this fit your furnace?

This filter is for HVAC slots labeled 20x22x1 (the standard "nominal" size). The actual filter measures 19.5 x 21.5 x 0.75 inches — slightly smaller than nominal so it slides cleanly into the slot without binding.

To confirm fit:

  1. Pull out your current filter from the unit.
  2. Look for the size printed on the cardboard frame — typically the nominal size (20x22x1, 20x25x1, etc.).
  3. If 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.

Specifications

Nominal size 20x22x1 (20×22×1)
Actual dimensions 19.5 x 21.5 x 0.75 inches (19½ × 21½ × ¾)
Filter media Pleated synthetic
MERV options 8, 11 — see MERV guide
Replacement frequency Typically every 1–3 months. Pets, dust, or heavy use call for more frequent changes.
Compatibility Most residential furnaces, central AC, and air handlers
Set it once

Size, MERV, who to text — once. Then forget it.

Shipped yearly

A year of filters in one box — right size, right address, free shipping.

A text when it's due

One short text to whoever changes the filter, on the cadence you choose. One tap confirms.

You get confirmation

You get a text when it's done — and two friendly follow-ups go out first if it isn't.

Learn more

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