Rotary Gear Pump Head Heavy Duty With Relief Valve Port Size 1/2 In. Shaft Dia 5/8 In. Shaft Height 2 5/8 In. 7 GPM @ Freeflow 3/4 HP @ Free Flow Suction Lift 7.9 Ft. Pump RPM 1725 6.9 GPM @ 25 PSI 3/4 HP @ 25 PSI 1 1/2 HP @ 125 PSI Max Pressure 125 PSI Seal Mechanical With Stainless Steel Viton Carbon/Ceramic Steel Spur Gear Warranty Length 1 Year