Description Description Replaces:Repair Difficulty LevelPartial list of Model numbers that use this part:Use Ctrl+F and enter your model number for a quick search. View AllClose
Add to Cart Quick view FS4066-259, WG23X77 - OEM Tridelta Furnace Air Pressure Switch $32.95 Replaces: $32.95 Add to Cart Quick view
Add to Cart Quick view 537-003, FS4066-78, SWT0900 - OEM Tridelta Furnace Air Pressure Switch $32.95 Replaces: $32.95 Add to Cart Quick view
Add to Cart Quick view AP4290 - OEM Tridelta Furnace Air Pressure Switch $32.95 Replaces: $32.95 Add to Cart Quick view