Double Diaphragm Pump Air Consumption (Maximum) 180 scfm Air Intake Connection Size 1/2 in Air Intake Connection Type NPT Check Seat Material Santoprene Diaphragm Material Santoprene Feet of Head (Maximum) 320 ft Flow Rate (Maximum) 273 gpm Manifold Connection Single Port Media Discharge Connection Size 3 in Media Discharge Connection Type NPT Media Discharge Location Center Top Media Intake Connection Size 3 in Media Intake Connection Type NPT Media Intake Location Bottom Center