Air Operated Double Diaphragm Pump Air Consumption (Maximum) 40 scfm Air Intake Connection Size 1 in Air Intake Connection Type NPT Check Seat Material Polypropylene Diaphragm Material Buna-N Feet of Head (Maximum) 288 ft Flow Rate (Maximum) 63 gpm Manifold Connection Single Port Media Discharge Connection Size 1 in Media Discharge Connection Type Flange Media Discharge Location Center Media Intake Connection Size 1 in Media Intake Connection Type Flange