Diaphragm Pump Operating Pressure (Maximum) 100 psi Diaphragm Chamber Design 3 Diaphragm Material Santoprene Check Valve Material Viton Discharge Connection Size 3/8 in Discharge Connection Type FNPT Flow Rate (Maximum) 1.1 gpm Housing Material Nylon Intake Connection Size 3/8 in Intake Connection Type FNPT Nameplate Voltage 120V AC Priming Self-Priming Pump Operation Type Electric Pressure Switch Yes Standards UL Listed Flow Rate @ 60 psi 0.75 gpm Feet of Head (Maximum) 230 ft