Pure Energy's CO2 Systems arrive to you tested and ready to be filled and used in competition directly out of the box the day you receive them. Pure Energy's CO2 Tanks are equipped with the Repeater Pin Valve which is the most durable pin valve in the industry. The Repeater Pin Valve boasts a recessed valve which connects easily and conveniently and is manufactured in brass with the most durable brass fittings. All Pure Energy CO2 Systems are extremely reliable at every level of play. With proper care and hydro-testing every five years, the lightweight, durable aluminum cylinders will withstand a lifetime of activity. This Pure Energy CO2 System has a safety purge valve installed from the factory to the highest of industry standards. Pure Energy CO2 Systems are viewed as the industry standard for reliability, durability, and safety.