Double Diaphragm Pump, Air Consumption (Maximum) 20 scfm, Air Intake Connection Size 1/4 in, Air Intake Connection Type NPT, Check Seat Material Aluminum, Diaphragm Material Viton, Feet of Head (Maximum) 125 ft, Flow Rate (Maximum) 10.9 gpm, Manifold Connection Single Port, Media Discharge Connection Size 1/2 in, Media Discharge Connection Type NPTF, Media Intake Connection Size 1/2 in, Media Intake Connection Type FNPT, Media Temperature (Maximum) 225 Degrees F