Description:

This is a ClimaTek Furnace Air Pressure Switch. ClimaTek Replacement Part, Built to Last!. Designed to Replace Part #s 12W51, 12W5101, 57M67, 57M6701, R22934-16, 22934-16 & More!. Designed for Lennox, Armstrong, Ducane, and Allied Furnaces!. Made in the USA!.