CMI Professional Dual Valve Fill Station
Need to fill CO2 tanks? The dual valve assembly makes filling tanks a smooth and easy fill. It comes with a Universal Fill Adapter. Attach it to the CO2 source tank, screw the fill adapter to the receiving tank, open the source tank valve, and then the ball valve. The ball valve allows a quick shut off (without having to turn it off at the source tank) while you switch tanks. The thick poly hose is 36" long.
Since CO2 is stored as a liquid, it doesn't have pressure gauge. That means a scale is needed to determine when the CO2 tank has been filled.