Double Diaphragm Pump Air Consumption (Maximum) 29 scfm Air Intake Connection Size 1/4 in Air Intake Connection Type NPT Check Seat Material PVDF Diaphragm Material Viton Feet of Head (Maximum) 120 ft Flow Rate (Maximum) 33.8 gpm Manifold Connection Single Port Media Discharge Connection Size 1 in Media Discharge Connection Type NPTF Media Discharge Location Center Media Intake Connection Size 1 in Media Intake Connection Type FNPT Media Intake Location Center