Diaphragm Pump Operating Pressure (Maximum) 45 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) 3.6 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 Yes Standards NSF Certified Flow Rate @ 20 psi 3 gpm Current 15 A