Air Compressor Pump Lubrication Type Splash Lubricated Number of Stages 2 Maximum Output Power 10 hp 15 hp Free Air Flow Rate @ Maximum Pressure 50.0 cfm @ 175 psi Number of Cylinders 2 Maximum Operating Pressure 175 psi Flywheel Diameter 17 1/2 in Flywheel Included Yes Pump Speed 1 100 RPM Duty Cycle Continuous Construction Cast Iron Groove Section B Number of Grooves 2 Valve Type Finger Cylinder Material Cast Iron Rotation CCW Stroke Length 4 in