Delavan 5850-201E 12VDC PowerFlo Pump 5-chamber diaphragm demand pump with Viton valves, Santoprene diaphragm and 12V DC electric motor Max. Flow 5.0 GPM; Max. Pressure 60 psi; Max. Draw 16.3A; Max. Fluid Temperature 140 F 1/2" FNPT inlet and outlet Housing: Polypropylene ; Fasteners: Stainless steel