Rotary Gear Pump Head, Duty Rating Heavy, Pedestal, Pump Body Material Cast Iron, Port Size 1 in, Recommended Motor HP 3 hp, Pump RPM 1,725, Temp. Range 32 Degrees to 280 Degrees F, Max. Pressure 125 psi, Max. Viscosity 550 SUS, Gear Steel Spur, Length 11 5/8 in, Width 4 in, Height 5 1/8 in, O-Ring Material Viton, Relief Valve With, Seal Mechanical With Stainless Steel, Viton, Carbon/Ceramic, Shaft Dia. 0.75 in, Shaft Height 3.5625 in, Shaft Material Steel, GPM @ Freeflow 20.6