Booster Pump, Phase Single, Pump Housing Material Cast Iron, Motor Enclosure Open Dripproof, Horsepower 1 1/2 hp, Nameplate Voltage 115/230V AC, Flow Rate @ 10 psi 15.5 gpm, Flow Rate @ 20 psi 15.3 gpm, Flow Rate @ 30 psi 14.8 gpm, Flow Rate @ 40 psi 14.3 gpm, Flow Rate @ 50 psi 13.8 gpm, Flow Rate @ 60 psi 13.3 gpm, Flow Rate @ 70 psi 12.8 gpm, Flow Rate @ 80 psi 12.2 gpm, Flow Rate @ 90 psi 11.2 gpm, Flow Rate @ 100 psi 10.2 gpm, Flow Rate @ 120 psi 9.6 gpm, Shut Off Pressure (Maximum) 194 psi WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)