Double Diaphragm Pump, Air Consumption (Maximum) 20 scfm, Air Intake Connection Size 1/4 in, Air Intake Connection Type FNPT, Check Seat Material Polyethylene, Diaphragm Material Buna-N, Feet of Head (Maximum) 289 ft, Flow Rate (Maximum) 15 gpm, Manifold Connection Single Port, Media Discharge Connection Size 1/2 in, Media Discharge Connection Type NPT, Media Discharge Location Center, Top, Media Intake Connection Size 1/2 in, Media Intake Connection Type NPT