Diaphragm Pump Operating Pressure (Maximum) 60 psi Diaphragm Chamber Design 5 Diaphragm Material Santoprene Discharge Connection Size 1/2 in Discharge Connection Type FNPT Flow Rate (Maximum) 7 gpm Housing Material Polypropylene Intake Connection Size 1/2 in Intake Connection Type FNPT Nameplate Voltage 12V DC Priming Self-Priming Pump Operation Type Electric Pressure Switch No Standards NSF Certified Flow Rate @ 20 psi 6.2 gpm Current 30 A Flow Rate @ 0 psi 7.2 gpm