CO2 Cartridges

CO2 cartridges are all the same idea — compressed carbon dioxide in a steel shell, released in one quick burst. What changes is the gram size (how much gas) and the neck (threaded vs. non-threaded). Get those two right and you're set.

Pick your size

• 8–12g — soda siphons, airsoft/BB guns, life-jacket re-arm kits, budget bike inflators
• 16g — the workhorse: HVAC condensate drain guns and most road/gravel bike tires
• 25–45g — high-volume jobs: stubborn drain lines, MTB and fat-bike tires
• 74g — the largest, for repeated or heavy-duty inflation

Threaded or non-threaded?

If your tool screws onto the cartridge, you need threaded (3/8″-24 UNF). If the cartridge drops into a sleeve and is pierced when you tighten the cap, you need non-threaded — they are not interchangeable. Not sure which you have? Use the Cartridge Finder.

Food-grade & bulk

Every cartridge is leak-tested, food-grade CO2 — safe for beverage and culinary use. Shops, techs, and kitchens buy by the case; request bulk pricing on 300+ units.