The CO2 Refill Box
Get $10 off your first refill by simply ordering a free refill box below and applying the FIRSTFILL10 discount code when sending us two empty canisters. Once USPS scans your return box, we’ll send out two full, recycled canisters for only $31.98—that’s just $15.99 each!
Let the savings flow – Claim your $10 discount
Step 1:Â Order your box
Purchase a free refill box for your canister type, and we’ll email your discount code after checkout to apply to your account.
Step 2: Apply your code
Complete your account setup using the welcome email you’ll receive after purchase, then apply the code FIRSTFILL10 to your account.
Step 3: Ship your empties
Box up your empty canisters and leave them in your mailbox for USPS pickup - we’ll automatically apply your discount!
Why choose Soda Sense?
We get it — there are other options out there for CO2 refills. So, what makes us different? Simple: our exchange program is designed for ease of use, cost-effectiveness, and time efficiency — all with you in mind. (You’re the important one here, not us.)
Simple, hassle-free refills
Our exchange program technology means that there is no need for you to go online when you need to refill. Just box up your empties and let us take care of the rest.
Free shipping - always
Unlike other providers, we never charge extra for shipping. Our $20.99 refill price offers unbeatable value — it includes two-way shipping, your CO2 refill, and even a box with a prepaid return label for next time.
No hidden fees
We only send you CO2 when you start the process by shipping us your empties. That means no return windows to worry about — and no penalties if you miss one.
What our members say
More cost effective than other exchange solutions
"The process was so simple; just put the empty canisters into the supplied box and drop them in the mailbox. A week later, new canisters arrived. And they were much less expensive than exchanging them at a nearby store."
Soda Sense is extremely convenient
"Soda Sense is extremely convenient with delivery right to your door! Comes with a printed return label and well designed reusable box, perfect fit for your empty cans. You feel good recycling and helping the environment, while sipping on crisp clean sparkling water"
So Convenient!
"I love everything about this service. Pro tip: put the return label on the box as soon as it arrives, then you won't lose it and have to delay getting new canisters."