Automatic Reset: Eliminates the need for manual intervention after a standard thermal trip event

Constructed from high-durability composite to resist heat-related deformation and chemical corrosion

preventing bypass leaks and pressure fluctuations

it provides the thermal protection and duty cycle required for demanding commercial environments

Verify your specific model against the OEM part number to ensure a match

Carrier 325423-401 Vent Coupling 326070-701 Automatic Reset: Eliminates the needThe Carrier 325423 401 Vent Coupling is a critical OEM replacement part designed specifically for condensing gas furnaces. This flexible rubber coupling provides a secure, airtight seal between the furnace's secondary heat exchanger and the PVC vent piping, ensuring the safe induction of combustion air and the efficient removal of flue gases. Specifically engineered for 90+ AFUE furnaces, including the Carrier PG9MAA, PG9MXA, and PG9UAA series, this