Booster Pump, Phase Three, Pump Housing Material Cast Iron, Motor Enclosure Open Dripproof, Horsepower 3/4 hp, Nameplate Voltage 208-230/460V AC, Flow Rate @ 10 psi 20 gpm, Flow Rate @ 20 psi 19.5 gpm, Flow Rate @ 30 psi 18.6 gpm, Flow Rate @ 40 psi 17.5 gpm, Flow Rate @ 50 psi 15.7 gpm, Flow Rate @ 60 psi 13.5 gpm, Flow Rate @ 70 psi 10.5 gpm, Flow Rate @ 80 psi 7 gpm, Flow Rate @ 90 psi 2 gpm, Shut Off Pressure (Maximum) 93 psi, Compatible Intake Pipe Size 3/4 in WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)