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 20 gpm Flow Rate @ 20 psi 19 gpm Flow Rate @ 30 psi 17.7 gpm Flow Rate @ 40 psi 16 gpm Flow Rate @ 50 psi 13.5 gpm Flow Rate @ 60 psi 10 gpm Flow Rate @ 70 psi 5 gpm Shut Off Pressure (Maximum) 77 psi Compatible Intake Pipe Size 3/4 in Compatible Discharge Pipe Size 3/4 in Intake Type NPT Mounting Orientation Horizontal