CO2 Injection System. .1-1 CFH CONTROL WIZARD CO2 INJECTION SYSTEM .1-1 Cubic Feet per Hour. Includes regulator, flow meter, solenoid, pressure gauge, plastic dispensing tube, instructions and timer.Designed for use with carbon dioxide gas only. The flow meter in the picture may vary from the description. It is the most compact and reliable bottled carbon dioxide system on the market. CGA320 valve acceptable.... — Ships from Portland, Oregon USA....more info.