Air Compressor Pump Lubrication Type Splash Lubricated Number of Stages 1 Maximum Output Power 1 hp Free Air Flow Rate @ Maximum Pressure 1.9 cfm @ 115 psi Number of Cylinders 1 Maximum Operating Pressure 115 psi Flywheel Diameter 6 in Flywheel Included Yes Construction Cast Iron Groove Section A Number of Grooves 1 Valve Type Reed Valve Material Stainless Steel Rotation CCW Stroke Length 1 3/8 in