The York 81634375 Air Pressure Switch (1 Unit) is a genuine OEM safety control component used to monitor and regulate air pressure in York HVAC systems. It ensures the correct airflow for combustion and shuts down the system if unsafe pressure levels are detected. This switch activates at 0.15" WC on fall, maintaining optimal system performance and safety. Key Features Genuine York OEM air pressure switch Activates at 0.15" WC on pressure fall Ensures safe and reliable furnace operation Prevents system damage caused by improper airflow Durable construction for long-lasting performance Specifications Part Number: 81634375 Type: Air Pressure Switch Set Point: 0.15" WC on Fall Operation: Normally Open (Closes on Pressure Rise) Application: Furnace/Heating System Safety Control Brand: York Compatible Models CP9C120D20MP13C TM9M100C16MP12 LP9C120D20MP12C TP9C080B12MP13C TM9M120D20MP12 CP9C100C16MP13C LP9C060B12MP13C TP9C120D20MP13C TM9M080C16MP12 CP9C080C16MP13C and more Why Choose This Item Choose the York 81634375 Air Pressure Switch (1 Unit) to restore proper airflow control and safety in your HVAC system. Designed to meet York?s exact specifications, it offers dependable performance, precise operation, and enhanced system protection.