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 IS20151-34401 - OEM Lennox Ducane Armstrong Furnace Air Pressure Switch $73.95 Replaces: $73.95 Add to Cart Quick view
Add to Cart Quick view IS20151-3439, 293411 - OEM Lennox Ducane Armstrong Furnace Air Pressure Switch $83.95 Replaces: $83.95 Add to Cart Quick view
Add to Cart Quick view IS20151-3386, 293413 - OEM Lennox Ducane Armstrong Furnace Air Pressure Switch $50.45 Replaces: $50.45 Add to Cart Quick view
Add to Cart Quick view 14A44 - OEM Lennox Armstrong Ducane Furnace Air Pressure Switch $71.95 This is a brand new OEM Lennox Armstrong Ducane upgraded Furnace Air Pressure Switch. It replaces the part numbers listed below.An air switch is safe $71.95 Add to Cart Quick view