Booster Pump, Phase Three, Pump Housing Material Cast Iron, Motor Enclosure Open Dripproof, Horsepower 1 hp, Nameplate Voltage 208-230/460V AC, Flow Rate @ 20 psi 15.5 gpm, Flow Rate @ 30 psi 15 gpm, Flow Rate @ 40 psi 14.5 gpm, Flow Rate @ 50 psi 14 gpm, Flow Rate @ 60 psi 13.4 gpm, Flow Rate @ 70 psi 13 gpm, Flow Rate @ 80 psi 12.3 gpm, Flow Rate @ 90 psi 11.5 gpm, Flow Rate @ 100 psi 11.2 gpm, Flow Rate @ 120 psi 9.8 gpm, Shut Off Pressure (Maximum) 185 psi, Compatible Intake Pipe Size 3/4 in