Double Diaphragm Pump, Air Consumption (Maximum) 100 scfm, Air Intake Connection Size 3/4 in, Air Intake Connection Type NPT, Check Seat Material 316 Stainless Steel, Diaphragm Material Santoprene, Feet of Head (Maximum) 231 ft, Flow Rate (Maximum) 135 gpm, Manifold Connection Single Port, Media Discharge Connection Size 2 in, Media Discharge Connection Type NPT, Media Discharge Location Center, Top, Media Intake Connection Size 2 in, Media Intake Connection Type NPT