Diaphragm Pump, Air Intake Connection Size 1/4 in, Air Intake Connection Type NPT, Check Seat Material Stainless Steel, Diaphragm Material PTFE, Santoprene, Feet of Head (Maximum) 15 ft, Flow Rate (Maximum) 13 gpm, Manifold Connection Multiport, Media Discharge Connection Size 1/2 in, Media Discharge Connection Type NPTF, Media Intake Connection Size 1/2 in, Media Intake Connection Type NPTF, Operating Pressure (Maximum) 100 psi, Priming Self-Priming, Pump Assembly Type Bolt