CAP's dual-tank CO2 regulator assembly combines a precision regulator / flow gauge and an industrial solenoid valve. The unique ability to connect the REG-2 to TWO tanks of compressed CO2 allows double the run time between changing out the tanks. The flow gauge can be set from .5 to 15 SCFH. Designed to work with any 120 volt control device. Features a tank pressure gauge to indicate remaining tank pressure. Complete with 6 foot power cable and 10 foot of 1/4" air line.