Furnace Dual Pressure Switch Assembly – Honeywell BA420123 / BA4

Furnace Dual Pressure Switch Assembly – Honeywell BA420123 / BA420128 Condition: Used/like new Manufacturer: Honeywell Model Numbers: BA420123 & BA420128 Type: Dual Draft Inducer Pressure Switch Assembly Mounting: Factory Metal Bracket Included Electrical Rating: 24V AC, Normally Open (Closes on Pressure Rise) Pressure Ratings: BA420123 → 1.00" W.C. PF (Positive Pressure) BA420128 → 1.35" W.C. PF (Positive Pressure) Max Pressure: 1/2 PSI Orientation: Vertical Mount Enclosure: Plastic Housing with Integrated Terminals Label Reference: PH10N0803 / 1028D04G Country of Assembly: Mexico Key Features: Dual pressure switch assembly for two-stage or variable-speed furnaces Factory-calibrated for safe burner and inducer operation Durable molded construction with mounting bracket Ensures proper combustion airflow and draft sensing Compatible Replacement Models: Honeywell BA420100 Series Trane / American Standard / Lennox OEM furnaces using BA420123 & BA420128 combo Suitable for dual-stage systems requiring 1.00" & 1.35" W.C. pressure settings Common Applications: Two-stage natural gas furnaces Draft inducer and burner airflow verification Trane, Lennox, and Goodman high-efficiency furnaces Condition: Used - Like new For Sale By: Owner Curbside pick up: Yes Shipping: No Fulfillment: Curbside pick up Drop off / Delivery: No Cash accepted: Yes