Booster Pump Phase Three Pump Housing Material Cast Iron Motor Enclosure Open Dripproof Horsepower 1 hp Nameplate Voltage 230/460V AC Flow Rate @ 10 psi 19 gpm Flow Rate @ 20 psi 19 gpm Flow Rate @ 30 psi 18.2 gpm Flow Rate @ 40 psi 17.4 gpm Flow Rate @ 50 psi 17 gpm Flow Rate @ 60 psi 16 gpm Flow Rate @ 70 psi 15.2 gpm Flow Rate @ 80 psi 14.2 gpm Flow Rate @ 90 psi 13.2 gpm Flow Rate @ 100 psi 12.5 gpm Flow Rate @ 120 psi 8.8 gpm Shut Off Pressure (Maximum) 75 psi