A one-time purchase isn't available yet. Right now every size ships as a full year of filters with free shipping and reminder texts, from $7.08 a month billed yearly.
We're deciding whether to add a one-time option with no subscription. If that's what you'd prefer, tell us below with your filter size in the message, and we'll email you once when it's available, with a launch discount. No newsletter, no other emails.
