On-Demand Potable Water System Pump, Max. Pressure - Pumps 35 psi, Housing Material - Pumps Polypropylene, Diaphragm Material - Pumps Santoprene (R), Max. Flow 3.3 gpm, Voltage - Pumps 12V DC, Power Type Electric, Quad Chamber Diaphragm, Inlet/Outlet 1/2 in HB, Check Valve EPDM, Flow 3.3 gpm, Fuse Amps 7 A, Pressure On 25 psi, Pressure Off 35 psi, Prime in Feet 8, Self-Priming Yes, Standards -