Booster Pump Phase Single Pump Housing Material Cast Iron Motor Enclosure Open Dripproof Horsepower 2 hp Nameplate Voltage 115/230V AC Flow Rate @ 10 psi 53 gpm Flow Rate @ 20 psi 49 gpm Flow Rate @ 30 psi 45 gpm Flow Rate @ 40 psi 41 gpm Flow Rate @ 50 psi 36.5 gpm Flow Rate @ 60 psi 31 gpm Flow Rate @ 70 psi 24.5 gpm Flow Rate @ 80 psi 17 gpm Flow Rate @ 90 psi 9 gpm Shut Off Pressure (Maximum) 100 psi Compatible Intake Pipe Size 1 1/4 in Compatible Discharge Pipe Size 1 in