Lennox 17U20 Pressure Switch 321142-301 Durable Construction: Built with corrosion-resistant

Durable Construction: Built with corrosion-resistant materials to withstand high-pressure R-22 environments

this kit facilitates isolation of the refrigeration compressor during maintenance or component replacement

and F29-0228

Can I replace just the O-ring or must I replace the entire valve

Field-Trimmable 72-Inch Length: Provides flexibility for technicians to cut the rod to the exact length required for specific remote sensor applications

Lennox 17U20 Pressure Switch 321142-301 Durable Construction: Built with corrosion-resistantThe Lennox 17U20 Pressure Switch is a high precision sensing component engineered for critical monitoring in residential and commercial HVACR systems. This OEM Lennox 104371 10 replacement part is designed to actuate at 1. 00 inch W. C., providing essential safety interlocking for furnace draft inducer motors and air handling units. Built with a sensitive diaphragm and a robust SPST N. O. contact configuration, it ensures the electrical circuit closes