Piston Air Compressor, Lubrication Type Oil Free, Number of Cylinders 2, Output Power 0.75 hp, Phase Single, Voltage 115/208-230V AC, Maximum Continuous Pressure 100 psi, Maximum Intermittent Pressure 100 psi, Free Air Flow Rate 4.7 cfm, Maximum Speed 1,725 RPM, Inlet Size 1/4 in, Inlet Type NPT, Outlet Size 1/4 in, Outlet Type NPT Corrosion-resistant sandwich valve stops foreign particles from lodging on valve seats. Model has an aluminum cylinder head and is rated for continuous duty. Thermally protected motor with high torque start windings.