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Choose Options Compare Quick view 103247-01 103018-01 - OEM Lennox Armstrong Ducane Furnace Air Pressure Switch As low as $84.99 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 safety designed to ensure that your inducer motor is... As low as $84.99 Choose Options Compare Quick view
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Choose Options Compare Quick view 36W49 36W4901 - OEM Lennox Armstrong Ducane Furnace Air Pressure Switch 0.55" As low as $90.99 This is a brand new OEM Lennox Armstrong Ducane upgraded Furnace Air Pressure Switch 0.55". It replaces the part numbers listed below.An air switch is safety designed to ensure that your inducer... As low as $90.99 Choose Options Compare Quick view
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