Air Compressor Pump Lubrication Type Splash Lubricated Number of Stages 2 Maximum Output Power 7.5 hp 10 hp Free Air Flow Rate @ Maximum Pressure 35.0 cfm @ 175 psi Number of Cylinders 2 Maximum Operating Pressure 175 psi Flywheel Diameter 17 9/16 in Flywheel Included Yes Pump Speed 1 050 RPM Duty Cycle Continuous Construction Cast Iron Groove Section B Number of Grooves 1 Valve Type Finger Rotation CW Stroke Length 3 1/2 in