making it a versatile truck-stock item for any service contractor tackling water heater element replacement jobs

Extended 36-Inch Reach: The durable 36" lead offers maximum flexibility for routing through complex furnace

Always verify your specific model number against the HVAC part compatibility list

If the motor is seized or pulling high amps

If the vacuum breaker is constantly weeping from the atmospheric vent or fails to close during pressurized flow

Trane SWT2979 Pressure Switch 318973-401 making it a versatile truck-stockThe Trane SWT2979 Pressure Switch is a critical safety component designed for precise draft monitoring in high efficiency Trane and American Standard furnaces. As a OEM dual pressure switch, this part is the direct replacement for legacy part numbers BA20149 and C342634P62. This 2 stage air pressure switch features a dual diaphragm configuration engineered to sense specific vacuum thresholds: the high side is rated to open at 1. 93" W. C. and close at