Vacuum Pump Output Power 1.25 hp Phase Single Voltage 115/230V AC Maximum Flow Rate 17.7 cfm Maximum Vacuum 0.0001 torr Inlet Size 1 5/8 in Inlet Type NPT Outlet Size 1 5/8 in Outlet Type NW Application Chamber Evacuation Degassing Freeze Drying Light Bulb Neon Sign Manufacturing Picture Tube Evacuation Potting Rice Porosity Test Vacuum Drying Maximum Discharge Pressure 0 mbar Maximum Operating Pressure 0 psi