On-Demand General Purpose Diaphragm Pump Operating Pressure (Maximum) 45 psi Diaphragm Chamber Design 4 Diaphragm Material EPDM Check Valve Material Viton Discharge Connection Size 1/2 in Discharge Connection Type Barbed Flow Rate (Maximum) 3 gpm Housing Material Polypropylene Intake Connection Size 1/2 in Intake Connection Type Barbed Nameplate Voltage 120V AC Priming Self-Priming Pressure Switch Yes Standards - Duty Cycle Continuous Current 1.5 A Includes -