CO2 Guides & Tools
Short, practical help for choosing refill vs exchange, picking tank sizes, and calling suppliers without wasting an afternoon. These pages feed the directory (they don’t replace it).
Start here
Refill vs exchange
What suppliers mean by “we don’t fill customer-owned,” what “swap” really is, and how to pick the simplest path.
Tank sizes (5 vs 10 vs 20 vs 50)
Pick a size that fits your space and your patience. Includes practical “what most people actually buy.”
Call checklist
A phone script: refill vs swap, owned tank policy, valve type, fees, and “do you fill while I wait?”
CO2 by use-case
Pick your lane, then jump into filtered listings. Use-case pages can be stubs today. The hub still routes perfectly.
Tools
Cylinder Picker
Quick “what size should I buy” helper based on use-case, space, and patience level.
Runtime Estimator
Estimate how long a cylinder might last for common setups. (Helps avoid buying too small.)
Cost Comparator
Compare refill vs exchange cost with real numbers so you can stop guessing.
Need help fast?
I can’t find CO2
Switch to exchange, try alternate supplier types, and ask the question that avoids misleading “no” answers.
I’m brand new
Start with the simplest path (exchange), pick a sane tank size, and then browse listings with filters.