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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM venting component for the Amana/Goodman AMH80804BXBC 80% gas furnace. This sheet-metal transition adapts the furnace's induced-draft outlet to the chimney/vent connector, forming a properly sized path for combustion byproducts. A damaged, corroded, or ill-fitting transition can cause flue-gas spillage and improper draft.
The OEM transition matches the exact flange dimensions and outlet diameter of your furnace, ensuring a leak-free, correctly drafted connection. Field-fabricated or generic substitutes rarely seal properly and can compromise combustion venting. OEM is recommended for any flue-gas-carrying part.
Easy — attaches with standard sheet-metal screws to the existing draft outlet and vent connector. Seal per code, then verify proper draft and check for spillage at the vent with the furnace running.