CO2 Tools & Helpers

Practical mini-tools that help you pick hardware, estimate costs, and talk to suppliers without wasting an afternoon.

Open CO2 Directory Map Guides CO2 101 Claim / Update

If you’re brand new: start with Cylinder Picker then jump into the directory with refill vs exchange filters.

Core tools

Cylinder Picker

Choose a CO2 tank size (5/10/20/50 lb) based on use-case, space, and how much you hate refills.

Open Tank sizes guide

CO2 Remaining Estimator

Estimate how much CO2 you have left using tare weight and current weight. Works for standard tanks and SodaStream-style bottles.

Open Safety basics

Refill vs Exchange Cost

Compare cost per lb, cost per swap, and “how annoying is this” value. Helps you pick the simplest path.

Open Browse suppliers

Valve / Regulator Fit Check

Quick compatibility help for common CO2 setups (CGA-320, adapters, and what to ask when you’re unsure).

Open Call checklist

CO2 Runtime Estimator

Estimate how long a tank lasts based on your use-case. Useful for planning swaps and avoiding surprise empty tanks.

Open Pick a tank

Supplier Wizard

Translates human language into supplier language. Generates exactly what to ask for your use-case (refill vs exchange vs “nope”).

Open Directory

Pro tip: if a supplier says “we don’t refill,” that often means “we only exchange” or “we don’t fill customer-owned.” The wizard + cost tool clears that up fast.

Quick guides

Short, practical stuff that prevents mistakes.

CO2 101

Start here if you’re new: tank types, refill vs exchange, and basic safety.

Open

Tank Sizes

5 lb vs 10 vs 20 vs 50: what people actually buy and why.

Open

Supplier Call Checklist

The exact questions that prevent wasted trips and confusing phone calls.

Open

Open directory Open map All guides

External references

We link out only when a tool already exists and does the job better. These open in a new tab.

Open trusted calculators & fitting references

Homebrew

Keg PSI / carbonation calculator: Brewers Friend
CO2 cylinder “how many kegs” chart: Micro Matic

Valves & fittings

CGA fitting reference (includes CGA-320 for CO2): CONCOA

Prefer to stay on CO2 Locator? Use our valve checker and cost comparator first.

Need a tool or missing supplier info?

Tell us what you’re trying to do and what’s confusing. We’ll either build the missing helper or fix the data.

Contact Request a location Claim / Update Directory