helping technicians prevent acid formation and compressor motor burnout

Will this fit a 5/8-inch motor shaft

consolidating several fixed-voltage inventory items into one part

While the electrical specs may match other systems

or internal obstructions in the heat exchanger

Lennox 63W57 Pressure Switch Els PW 17895 helping technicians prevent acid formationThe Lennox 63W57 Pressure Switch is a critical genuine OEM component engineered for precise furnace diagnostic monitoring. This SPST furnace pressure switch is factory calibrated with a 0. 55 . 95" WC pressure rating, ensuring the inducer motor provides sufficient draft for safe combustion. As a direct replacement for Lennox 56M22, the 63W57 eliminates compatibility guesswork during emergency service calls. It functions as a safety interlock,