NISPIRA CO2 Conversion Adapter for Soda Machine Tank Canister CO2 adapter for easy gas refilling and access at any local sporting store. Compatible with aftermarket CO2 paintball canisters. Do not use it with the original Sodastream gas canister. Save your money from spending on the expensive Soda Machine tank like Soda strean. Including the L wrench key. Set the center pin flush to the surface by using the key. Turn the key anti clockwise to raise the pin. Installation is easy. For best result, suggest using Empire Paintball 24oz CO2 Tank or any other similar model. Please contact us for further assistance.