Diaphragm Pump, Inlet/Outlet 3/8 in FNPT, Housing Material - Pumps Polypropylene, Max. Temp - Pumps 140 Degrees F, Max. Flow 2.0 gpm, Max. Pressure - Pumps 60 psi, Voltage - Pumps 12V DC, Diaphragm, Diaphragm Material SantopreneR, Check Valve VitonR, Pressure On 20 psi, Pressure Off 60 psi, Length In. 8.5 in, Width In. 4.0 in, Height In. 3.45 in, Prime in Feet 8, GPM @ 0 PSI 2.2, GPM @ 20 PSI 2.0, GPM @ 40 PSI 1.9, Motor Type Totally Enclosed Nonventilated, Self-Priming Yes