SAFELY CONTROL THE FLOW OF CO2 WITH OUR PREMIUM PLUS LOW PRESSURE PRIMARY CO2 GAS REGULATOR BEER. FOR ADDED SAFETY, THIS MODEL HAS AN INTEGRATED PRESSURE RELIEF VALVE THAT VENTS IF PRESSURES EXCEED 55-65 PSI. THIS PRIMARY REGULATOR COMES WITH AN OUTPUT GAUGE THAT MONITORS PRESSURE UP TO 60 PSI TO PROVIDE YOU OPTIONS FOR DIFFERENT BEERS WHILE THE TANK GAUGE HAS A 0-3000 PSI RANGE SO YOU KNOW HOW MUCH PRESSURE REMAINS IN YOUR CYLINDER. PREMIUM PLUS REGULATORS COME STANDARD WITH A TAMPER-EVIDENT ADJUSTMENT SCREW AND BONNET, PREVENTING UNAUTHORIZED ADJUSTMENT TO GAS PRESSURE WHICH CAN CAUSE FOAMING/PERFORMANCE ISSUES.