Rotary Gear Pump Head, Duty Rating Intermediate, Pedestal, Pump Body Material 316 Stainless Steel, Port Size 1/2 in, Recommended Motor HP 3/4 hp, Motor Frame 56C, Pump RPM 1,725 RPM, Temp. Range -50 Degrees to 450 Degrees F, Max. Pressure 150 psi, Max. Viscosity 500 SUS, Relief Valve Without, Seal Mechanical, Shaft Dia. 0.5 in, Shaft Height 2.63 in, Shaft Material 316 Stainless Steel, Amps AC 8.4/4.2, GPM @ Freeflow 4.4 gpm, HP @ Free Flow 0.08 hp