On-Demand General Purpose Diaphragm Pump Operating Pressure (Maximum) 30 psi Diaphragm Chamber Design 2 Diaphragm Material EPDM Discharge Connection Size 3/8 in Discharge Connection Type FNPT Flow Rate (Maximum) 2.3 gpm Housing Material Polypropylene Intake Connection Size 3/8 in Intake Connection Type FNPT Nameplate Voltage 12V DC Priming Self-Priming Pressure Switch Yes Duty Cycle Intermittent Current 2.9 A