Excellent Quality, Stable and : our control switches feature a high strength plastic housing and alloy base, with safety valves made from brass material; They are and age , capable of repeated use, ensuring stable operation even under long time high frequency use High Performance Safety Protection: this air compressor pressure switch is rated for 135-175 PSI, features 4 ports, a 20 A rating, and operates on a 110-120V current; It is equipped with a 200 PSI brass safety valve and a 0-200 PSI pressure gauge; It turns on the compressor at 135 psi and turns off the protection at 175 psi, Precise Pressure Control with Flexible Adjustment: this 4 ports pressure switch is factory preset to 135-175 PSI and can be fine-tuned using the red lever to adjust the cut in/cut out pressure Four Ports Design, Universal Npt 1/4" Interface: the air pressure switch features four 1/4 inch NPT female threaded interfaces, which are compatible with a variety of pneumatic components, including pressure gauges, safety valves, and air outlets; It offers flexible installation and easy expansion; Complete Kit for Quick Installation: our air compressor replacement parts include pressure switches, pressure gauges, and unloading valves; Plug and play, no additional modifications required, replacement and installation can be completed in 5 minutes; Hassle free and time saving, Weight: 0.90279296289 pounds, Manufacturer: Hipzeepo