Dual Pressure Switch Assembly – Honeywell BA20123

Dual Pressure Switch Assembly – Honeywell BA20123 (B4057, BA20173) Condition: Used/like new Manufacturer: Honeywell Model Numbers: BA20123, BA20173 Part Numbers: 5005, 4672831, 46739002 Electrical Rating: 24 VAC, 50/60 Hz Switch Type: Dual Negative Pressure (Vacuum) Switch Mounting: Factory metal bracket, pre-mounted Ports: 2 pressure ports with rubber hose connector (included) Key Specifications: Dual-switch configuration for high/low pressure operation Factory-calibrated diaphragm sensors Designed for draft inducer or combustion airflow verification Normally open (closes on pressure rise) Compatible with various Honeywell and OEM furnace systems Common Furnace Applications: Honeywell-integrated furnaces Carrier, Lennox, Goodman, York, and Amana models using dual pressure sensors Used for proving blower or inducer operation before ignition Compatible Replacement Numbers: BA20123 / BA20173 Honeywell 5005 Series Condition: Used - Like new For Sale By: Owner Curbside pick up: Yes