TAPRITE E-T742 CO2 Primary Beer Dual High Pressure Gauge New - CGA 320 Inlet 5/16" Barb Shutoff (Brass Body) Commercial Dual Gauge Design with A 60 Psi and 2000 Psi Gauge Low Pressure Gauge. Primary Keg Beer Regulator 5/16 barb Shutoff with Check Valve Ball Check Valve. Gray Plastic Bonnet for Easy Pressure Adjustment. Co2 Keg Brass Beer Double Gauge Regulator.