Magnetic Starter. Low oil switch and automatic tank drain. Triple-pass pump mounted after-cooler. Start-stop pressure switch. ASME safety valves fully enclosed belt guard This 108-230 volt 3 phase 7.5hp, is an Elite model, it has the low noise of a rotary screw compressor with the value of a piston compressor. It comes complete with everything you need to optimize your work and minimize downtime. Includes a full 2 year warranty.