Built for durability in demanding machine rooms

The Lennox 14M89 Pressure Switch Tubing Kit is a critical replacement component designed for precise pressure monitoring within high-efficiency Lennox furnace systems

Optimized Flow Control: Includes dedicated regulators designed for 58L and 103L cylinders to ensure consistent delivery during the calibration process

This is an N5-12 flare cap

providing the necessary high-impedance barrier to suppress electrical transients and protect downstream sensitive electronics

ClimateMaster 13B0015N04 Pressure Switch Els PW 17895 Built for durability in demandingThe ClimateMaster 13B0015N04 Pressure Switch is a mission critical OEM replacement part designed for high side refrigerant monitoring in geothermal and water source heat pump systems. Engineered as a high pressure switch, this component serves as a hard wired safety interlock that prevents terminal compressor failure by interrupting the control circuit when internal head pressures exceed safe operating limits. This HVAC pressure sensor is built with