On-Demand General Purpose Diaphragm Pump Max Pressure - Pumps 30 psi Housing Material - Pumps Polypropylene Diaphragm Material - Pumps Santoprene(R) Max Flow 2.3 gpm Voltage - Pumps 12V DC Power Type Electric Diaphragm Automatic Inlet/Outlet 3/8 in FNPT Flow 2.3 gpm Pressure On 20 psi Pressure Off 30 psi Self-Priming 6 ft Length 8 1/8 in Width 3 1/4 in Height 3 3/4 in Includes 12V DC Motor with Ball Bearings Pressure Switch Two 11 in Lead Wires