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Can I replace just the O-ring or must I replace the entire valve
Durable Construction: Built with corrosion-resistant materials to withstand high-pressure R-22 environments
Field-Trimmable 72-Inch Length: Provides flexibility for technicians to cut the rod to the exact length required for specific remote sensor applications
rotating counter-clockwise from the shaft end (CCWSE)
Lennox 17U20 Pressure Switch 321142-301 Can I replace just theThe 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