Double Diaphragm Pump Air Intake Connection Size 1/2 in Air Intake Connection Type FNPT Check Seat Material 316 Stainless Steel Diaphragm Material PTFE Flow Rate (Maximum) 71 gpm Manifold Connection Single Port Media Discharge Connection Size 1 1/2 in Media Discharge Connection Type Tri-Clamp Media Discharge Location Center Top Media Intake Connection Size 1 1/2 in Media Intake Connection Type Tri-Clamp Media Intake Location Bottom Center Media Temperature (Maximum) 220 Degrees F