Double Diaphragm Pump Check Seat Material Neoprene Diaphragm Material Neoprene Flow Rate (Maximum) 25 gpm Media Discharge Connection Size 1 1/2 in Media Discharge Connection Type FNPT Media Intake Connection Size 1 1/2 in Media Intake Connection Type NPT Operating Pressure (Maximum) 10 psi Priming Self-Priming Wetted Housing Material Polypropylene Duty Cycle Continuous