63W40 63W4001 - Furnace Air Pressure Switch Replaces Lennox Armstrong Ducane - USA
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Description
This is a new upgraded replacement furnace air pressure switch, made in the USA..
An air switch is safety designed to ensure that your inducer motor is running at the proper RPM, and creating the proper vacuum for your furnace to flue safely.
Replaces:
63W40 63W4001
Repair Difficulty Level
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