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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue/vent component for the AMVC800603BXAA furnace. It forms the sealed transition between the furnace's induced-draft outlet and the vent connector, directing combustion byproducts safely into the chimney or venting system. A correctly fitted transition is essential for proper draft and safe flue-gas evacuation.
The OEM 0128F00006 is stamped to the exact dimensions and flange pattern of your furnace's vent outlet, ensuring a leak-free seal. Aftermarket or hand-fabricated transitions frequently leave gaps that allow flue-gas leakage — a carbon-monoxide risk. For any venting component, genuine OEM is strongly recommended.
Moderate (2/5). Requires removing the existing transition, sealing with high-temp foil tape or approved sealant, and verifying draft. Shut off power and gas first. Typical time: 20–30 minutes.