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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM venting component designed for the ACVC80805CXBD 80% AFUE gas furnace and related Goodman/Amana models. This transition piece connects the furnace's induced-draft outlet to the chimney/vent pipe, channeling combustion byproducts safely out of the home. A corroded, cracked, or ill-fitting transition can leak flue gases and compromise draft.
Venting components must match the furnace's outlet geometry exactly to maintain a sealed, code-compliant connection. The genuine Goodman 0128F00006 is stamped to the original dimensions so it seats cleanly without gaps. Generic or fabricated alternatives risk poor sealing and flue-gas leakage — a safety hazard. OEM is strongly recommended for any combustion-venting part.
Moderate — Involves accessing the vent connection, removing the old transition, and sealing the replacement. Because it handles combustion gases, a CO check and draft verification should follow installation. Best performed by a qualified HVAC technician.
Confirm fitment against your furnace model before ordering. Shut off power and gas before servicing.