Double Diaphragm Pump Air Consumption (Maximum) 180 scfm Air Intake Connection Size 3/4 in Air Intake Connection Type FNPT Check Seat Material Aluminum Diaphragm Material Buna-N Feet of Head (Maximum) 289 ft Flow Rate (Maximum) 236 gpm Manifold Connection Single Port Media Discharge Connection Size 3 in Media Discharge Connection Type NPTF Media Discharge Location Center Media Intake Connection Size 3 in Media Intake Connection Type FNPT Media Intake Location Bottom