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The Goodman 0128F00006 is a genuine OEM chimney transition bottom that adapts the furnace flue outlet to the vent connector on the WFM18115S5CXCC and compatible Goodman and Amana gas furnaces. This sheet-metal transition directs products of combustion from the draft hood or induced-draft outlet into the vent pipe or chimney connector. A properly fitted transition is essential for correct draft, preventing flue-gas spillage and ensuring combustion byproducts are safely carried away from the living space.
This genuine OEM transition is stamped to the exact dimensions of your furnace's flue outlet, so it seats cleanly without gaps. Generic or hand-fabricated transitions can leave leak points that compromise draft and safety. For any component in the venting path, the factory part ensures a proper, sealed fit.
Moderate (3/5). Requires removing the existing transition and securing the replacement with sheet-metal screws and approved sealant. Confirm the venting is clear and draft is verified after installation. If you are not experienced with combustion venting, we recommend a licensed HVAC technician.
Ships fast with our exact-fit guarantee. Contact info@nationalhvacparts.com with your model and serial for fit verification.