Air Compressor Pump Lubrication Type Splash Lubricated Number of Stages 1 Maximum Output Power 3 hp Free Air Flow Rate @ Maximum Pressure 8.8 cfm @ 125 psi Number of Cylinders 3 Maximum Operating Pressure 125 psi Flywheel Diameter 12 5/8 in Flywheel Included Yes Pump Speed 995 RPM Construction Cast Iron Groove Section A Number of Grooves 2 Valve Type Disc Valve Material Swedish Steel Cylinder Material Cast Iron Rotation CCW Stroke Length 2 in