Description

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.

While this switch is manufactured by Lefoo, it is also compatible with select air compressor models from popular brands like Craftsman, DeWalt, Square D, Jenny, Black Max, Black & Decker, and others using a similar configuration.

Specifications:

• Brand: Lefoo
• Model: LF10-M4
• Pressure Range: Factory set to 110 PSI (on) / 150 PSI (off)
• Adjustable Differential: 35–50 PSI
• Maximum Pressure Rating: 175 PSI
• Switch Rating: 20A, DPST
• Four (4) 1/4″ Female NPT Ports
• One (1) 1/4″ Compression Unloader Valve Port
• Certifications: UL Listed & CSA Certified
• Includes: Compression nut and ferrule for unloader line
• Configuration: Standard 4-port layout with ON/OFF lever

Compatibility Disclaimer:

This is a Lefoo-manufactured product. Brand names such as Craftsman, DeWalt, Square D, Jenny, Black Max, and Black & Decker are listed for compatibility reference only. This part is not manufactured by or affiliated with those brands.