The Blueprint Controllers® CO2 Regulator regulates the flow of compressed CO2 from zero to 25 liters per minute (zero to 15 cubic feet per hour). The 110-volt, 6.5-amp regulator features a solenoid valve and a tank pressure gauge for reliable operation. The fitting connects to CGA320 tank valves. This regulator kit Includes 10 feet of 3/16-inch-ID tubing, two O-ring washers, power cord with grounded plug and a three-year warranty. Additional tubing is available separately.