Double Diaphragm Pump Air Consumption (Maximum) 140 scfm Air Intake Connection Size 1/2 in Air Intake Connection Type FNPT Check Seat Material 316 Stainless Steel Diaphragm Material Santoprene Flow Rate (Maximum) 86 gpm Manifold Connection Single Port Media Discharge Connection Size 1 1/2 in Media Discharge Connection Type Tri-Clamp Media Discharge Location Center Media Intake Connection Size 1 1/2 in Media Intake Connection Type Tri-Clamp Media Intake Location Center