Rotary Gear Pump Head, Duty Rating Heavy, Design Pedestal, Pump Body Material Bronze, Port Size 3/8", Pump RPM 1725, Temp. Range -20 Degrees to 210 Degrees F, Max. Pressure 125 psi, Max. Viscosity 550 SSU, Gear Fortron PPS Spur, Length 3-1/2", Width 9-3/8", Height 2-3/4", O-Ring Material Buna N, Relief Valve With, Seal Mechanical With Stainless Steel, Buna N, Carbon/Ceramic, Shaft Dia. 0.5", Shaft Height 2-3/8", Shaft Material 304 Stainless Steel, GPM @ Freeflow 4.8, HP @ Free Flow 1/2, GPM @ Freeflow @ 1725 RPM 4.8, HP @ Free Flow @ 1725 RPM 1/2, GPM @ 25 PSI 4.8, HP @ 25 PSI 1/2, GPM @ 50 PSI 4.7, HP @ 50 PSI 3/4, GPM @ 75 PSI 4.6, HP @ 75 PSI 3/4, GPM @ 100 PSI 4.4, HP @ 100 PSI 1, GPM @ 125 PSI 4.1, HP @ 125 PSI 1, GPM @ 125 PSI @ 1725 RPM 4.1, HP @ 125 PSI @ 1725 RPM 1, Suction Lift 3.5 ft., Suction Lift @ 1725 RPM 3.5 ft.WARNING: California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.