CO2, or Carbon Dioxide, is the cheapest air source one can use to power their paintball gun. CO2 tanks come in a variety of sizes and most CO2 tanks can be refilled at any local paintball field or store.

Online shopping for CO2 Systems - Tanks, Regulators & Parts from a great selection at Sports & Outdoors Store.

We carry paintball tanks from every manufacturer in the sport and guarantee to have the best pricing. We have everything you're looking for, including 8-gram co2, 12-gram co2, standard 20oz co2 tanks, affordable 48/3000 compressed air tanks, and a vast selection of carbon fiber tanks at all different price points.

Huge selection of portable paintball CO2 tanks w/current safety ratings for sale at discount prices. Easy online shopping, fast shipping & great service.

Look through our great selection of paintball compressed air tanks or paintball CO2 tanks, to ensure a custom fit for your marker. Whether you are looking for an air system for your pistol or your primary marker, all of our paintball tanks come …

Interstate Pneumatics WRCO2-FKIT2 20 Oz. CO2 Pin Valve Cylinder Tank Paintball with CO2 Disposable Mini Cartridge Conversion Adapter

Paintball CO2 canisters hold liquid CO2 in them that converts to a gas to operate the paintball marker. The liquid and gas in the CO2 tank naturally maintain a pressure of about 800psi at room temperature which will hold until all the liquid converts to gas or the temperature changes.

Carbon dioxide is most commonly known in the paintball world as “Co2”. Paintball CO2 Tanks are the least expensive way to power a paintball gun. The tanks come in all different sizes to fit the size preference of any size or strength paintball player.

The HK Army 20oz CO2 Tank is designed for paintball markers compatible with CO2, features a 20oz capacity, and comes equipped with a pin valve and a high-pressure burst disc. These tanks are also adorned with an HK Army screen-printed graphic.