Rotary Gear Pump Head Duty Rating Light Pedestal Pump Body Material Cast Iron Port Size 1/4 in Recommended Motor HP 1 hp Pump RPM 1 725 RPM Temp Range 32 Degrees to 280 Degrees F Max Pressure 100 psi Max Viscosity 550 SUS Gear Steel Spur Length 5 in Width 3 in Height 3 1/2 in Relief Valve Without Seal Viton Lip Shaft Dia 0.5 in Shaft Height 2.3594 in Shaft Material Steel GPM @ Freeflow 4.8 gpm HP @ Free Flow 0.5 hp