Diaphragm Pump Operating Pressure (Maximum) 60 psi Diaphragm Chamber Design 5 Diaphragm Material Santoprene Check Valve Material Viton Discharge Connection Size 1/2 in Discharge Connection Type FNPT Flow Rate (Maximum) 5 gpm Housing Material Polypropylene Intake Connection Size 1/2 in Intake Connection Type FNPT Nameplate Voltage 120V AC Priming Self-Priming Pump Operation Type Electric Pressure Switch No Standards NSF Certified Flow Rate @ 20 psi 4.1 gpm Current 1.5 A