Lefoo 110-150 PSI 4 Port Pressure Switch Air Compressor Control with Unloader

This is a Lefoo LF10-M4 air compressor pressure switch, factory set to turn on at 110 PSI and off at 150 PSI, with an adjustable differential range between 35–50 PSI. Built for dependable performance, this 4-port pressure switch is UL Listed, CSA Certified, and rated for up to 20 Amps. It features a 1/4″ compression unloader valve connection and 1/4″ female NPT tank port, making it a versatile option for many common compressor systems. The integrated DPST (double pole single throw) switch provides consistent power control in a compact, easy-to-install design.