49L9101 49L91 - 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:
49L9101 49L91
Repair Difficulty Level
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