Multi-Stage Booster Pump Phase Single Pump Housing Material Stainless Steel Motor Enclosure Open Dripproof Horsepower 1 hp Nameplate Voltage 115/230V AC Flow Rate @ 20 psi 22 gpm Flow Rate @ 30 psi 21 gpm Flow Rate @ 40 psi 20.5 gpm Flow Rate @ 50 psi 20 gpm Flow Rate @ 60 psi 19 gpm Flow Rate @ 80 psi 18 gpm Flow Rate @ 100 psi 14 gpm Flow Rate @ 120 psi 10 gpm Shut Off Pressure (Maximum) 150 psi Compatible Intake Pipe Size 1 in Compatible Discharge Pipe Size 1 in