Diaphragm Pump Operating Pressure (Maximum) 60 psi Diaphragm Chamber Design 3 Diaphragm Material Santoprene Check Valve Material Viton Discharge Connection Size 3/4 in Discharge Connection Type Quick Connect Flow Rate (Maximum) 2.2 gpm Housing Material Polypropylene Intake Connection Size 3/4 in Intake Connection Type Quick Connect Nameplate Voltage 12V DC Priming Self-Priming Pump Operation Type Electric Pressure Switch Yes Standards NSF Certified Flow Rate @ 20 psi 2.1 gpm