Booster Pump Phase Single Pump Housing Material Cast Iron Motor Enclosure Open Dripproof Horsepower 1/2 hp Nameplate Voltage 115/230V AC Flow Rate @ 10 psi 9.6 gpm Flow Rate @ 20 psi 8 gpm Flow Rate @ 30 psi 7.5 gpm Flow Rate @ 40 psi 7 gpm Flow Rate @ 50 psi 6.4 gpm Flow Rate @ 60 psi 5.7 gpm Flow Rate @ 70 psi 4.9 gpm Flow Rate @ 80 psi 4 gpm Flow Rate @ 90 psi 3 gpm Flow Rate @ 100 psi 2 gpm Flow Rate @ 120 psi 0 gpm Shut Off Pressure (Maximum) 120 psi