Air Compressor Pump Lubrication Type Splash Lubricated Number of Stages 1 Maximum Output Power 3 hp Free Air Flow Rate @ Maximum Pressure 10.1/8.5 cfm @ 150 psi Number of Cylinders 2 Maximum Operating Pressure 150 psi Flywheel Diameter 11 in Flywheel Included Yes Pump Speed 1 200 RPM Construction Cast Iron Groove Section A Number of Grooves 1 Valve Type Reed Valve Material Stainless Steel Rotation CCW Stroke Length 2 in