Diaphragm Pump, Operating Pressure (Maximum) 45 psi, Diaphragm Chamber Design 3, Diaphragm Material Santoprene, Check Valve Material Viton, Discharge Connection Size 1/2 in, Discharge Connection Type NPSM, Flow Rate (Maximum) 3.6 gpm, Housing Material Polypropylene, Intake Connection Size 1/2 in, Intake Connection Type NPSM, Nameplate Voltage 12V DC, Priming Self-Priming, Pump Operation Type Electric, Pressure Switch Yes, Standards CSA Certified, UL Listed, Duty Cycle Continuous