Air Compressor Pump Lubrication Type Splash Lubricated Number of Stages 1 Maximum Output Power 3 hp Free Air Flow Rate @ Maximum Pressure 10.3 cfm @ 135 psi Number of Cylinders 2 Maximum Operating Pressure 135 psi Flywheel Diameter 12 1/2 in Flywheel Included Yes Pump Speed 1 200 RPM Duty Cycle Continuous Construction Cast Iron Groove Section A Number of Grooves 1 Valve Type Finger Valve Material Stainless Steel Cylinder Material Cast Iron Rotation CCW Stroke Length 2 in