Double Diaphragm Pump Air Consumption (Maximum) 55 scfm Air Intake Connection Size 3/8 in Air Intake Connection Type FNPT Check Seat Material 316 Stainless Steel Diaphragm Material Buna-N Feet of Head (Maximum) Not Applicable Flow Rate (Maximum) 49 gpm Manifold Connection Single Port Media Discharge Connection Size 1 in Media Discharge Connection Type NPT Media Discharge Location Top Media Intake Connection Size 1 in Media Intake Connection Type FNPT Media Intake Location Bottom