Piston Air Compressor Lubrication Type Oil Free Number of Cylinders 2 Output Power 0.333 hp Phase Single Voltage 12V DC Maximum Continuous Pressure 100 psi Maximum Intermittent Pressure 100 psi Free Air Flow Rate 2.4 cfm Maximum Speed 1 800 RPM Inlet Size 1/4 in Inlet Type NPT Outlet Size 1/4 in Outlet Type NPT