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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue/vent component for the Amana/Goodman AMH80604BXBD 80% gas furnace. This sheet-metal transition adapts the furnace's induced-draft outlet to the vent connector, guiding combustion byproducts into the chimney or vent pipe. A properly fitted transition maintains correct draft and prevents flue-gas leakage at the collar.
The genuine OEM transition is stamped to the exact dimensions of your furnace's vent outlet, ensuring a leak-free, code-compliant connection. Universal or hand-fabricated substitutes rarely seal cleanly and can create draft or flue-gas spillage problems. For venting integrity, use the factory part.
Easy to Moderate — secured with sheet-metal screws and sealed at the joints. Ensure the vent connector reseats fully and check for proper draft after installation. Combustion-safety verification by a technician is recommended.