Kegco's 762 Commercial Grade Double Gauge Beer Regulator works with any CO2 tank with a CGA-320 valve and measures PSI, as well as the volume of the CO2 gas in the cylinder. The second gauge indicates how much CO2 is left in the cylinder and when it should be refilled. The T-style adjustment valve makes it easy to adjust the keg pressure when the regulator is cold. The Kegco Three-Way Air Distributor is made of aluminum and features two in-line shut offs and built-in mounting holes for convenient mounting.