Air Operated Diaphragm Pump Air Intake Connection Size 1/4 in Air Intake Connection Type NPT Check Seat Material Aluminum Diaphragm Material PTFE Feet of Head (Maximum) 289 ft Flow Rate (Maximum) 33 gpm Manifold Connection Single Port Media Discharge Connection Size 3/4 in Media Discharge Connection Type NPTF Media Intake Connection Size 3/4 in Media Intake Connection Type NPTF Media Temperature (Maximum) 225 Degrees F Operating Pressure (Maximum) 120 psi