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Choose Options Compare Quick view 2293416 - Furnace Air Pressure Switch Replaces Lennox Armstrong Ducane - USA As low as $43.95 This is a new upgraded replacement furnace air pressure switch, made in the USA..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... As low as $43.95 Choose Options Compare Quick view
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Choose Options Compare Quick view 12W51 12W5101 - Furnace Air Pressure Switch Replaces Lennox Armstrong Ducane - USA As low as $43.95 This is a new upgraded replacement furnace air pressure switch, made in the USA..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... As low as $43.95 Choose Options Compare Quick view
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Choose Options Compare Quick view 9370VO-HS-0037 - Furnace Air Pressure Switch Replaces Lennox Armstrong Ducane - USA As low as $42.45 This is a new upgraded replacement furnace air pressure switch, made in the USA..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... As low as $42.45 Choose Options Compare Quick view
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