Yamada Pumps DP-10BPH Type, Model 851849 DP-10 Series, Air Operated Double Diaphragm Pump, Hytrel Diaphragm, Hytrel / Buna-N Flat Check Valve / O-Rings, Polypropylene (PPG) Material, 6 GPM Max Flow, 3/8″ NPT Fluid Port, 1/4″ Female NPT (includes ball valve) Air Inlet, 3/8″ Female NPT (includes silencer) Air Exhaust, Aluminum Air Motor, 10 Feet Max Suction Lift