Sharpe Manufacturing SHA6720 1/2" Inlet Air Filter/Regulator (120CFM / 50CFM) Computer No. 6720. One 18C-3R Regulator with 160 lb. Inverted gauge (GA-160U) and air Cock (1-HC-1885)Additional regulated outlet included Filtered main line outlet included. Air Inlet: 1/2" F.P.T. Shipping Wt: 5 lbs. 12 oz. Filter Capacity: 120 CFM Regulator Capacity: 50 CFM