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 49L90, 49L9001 - OEM Lennox Ducane Armstrong Furnace Air Pressure Switch $114.95 Replaces: $114.95 Add to Cart Quick view
Add to Cart Quick view 80K11, 80K1101 - OEM Lennox Ducane Armstrong Furnace Air Pressure Switch $51.95 Replaces: $51.95 Add to Cart Quick view
Add to Cart Quick view IS20100-3072 - OEM Lennox Ducane Armstrong Furnace Air Pressure Switch $114.95 Replaces: $114.95 Add to Cart Quick view
Add to Cart Quick view IS20152-3437 - OEM Lennox Ducane Armstrong Furnace Air Pressure Switch $75.95 Replaces: $75.95 Add to Cart Quick view