Join our CO2 Refill Club and save 30% on future refills, plus free shipping.

See how it works and never be without bubbles.

Order 2 spare CO2. 1 canister comes with your Thirsti. Order 2 spares so you have 3 total.
Refill empty CO2. Place 2 empty canisters into the provided refill box.
Mail. Stick the shipping label to your refill box and mail via USPS.
Refill club. We'll automatically send you 2 new canisters to your door.
Use. Carbonate up to 60L per canister.

How to get more CO2
Never be without bubbles with our refill club.

Join our refill club to get 30% off on your second purchase and all future refills, plus free shipping straight to your door. Or get a one-time CO2 purchase whenever you need it without joining.

100% renewable CO2 and reusable canister. Carbon dioxide derived from renewable biomass in the USA.