Fits

Tridelta American Stand Furnace Air Pressure Switch 20537-003 FS4066-78 SWT0900

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Description

This is a BRAND NEW Tridelta Gas Furnace Air Pressure Switch. The Part #s include FS4066-78 SWT0900 & 20537-003. It has two wiring terminals and one hose port.
Function:
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 Old Part #s:
20537-003 FS4066-78 SWT0900
Repair Difficulty Level:
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