Double Diaphragm Pump, Air Intake Connection Size 1 in, Air Intake Connection Type Tri-Clamp, Check Seat Material 316 Stainless Steel, Diaphragm Material Santoprene, Feet of Head (Maximum) 31.4 ft, Flow Rate (Maximum) 54 gpm, Manifold Connection Single Port, Media Discharge Connection Size 1 1/2 in, Media Discharge Connection Type Tri-Clamp, Media Intake Connection Size 1 1/2 in, Media Intake Connection Type Tri-Clamp, Media Temperature (Maximum) 225 Degrees F