IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue/vent component engineered for the Goodman WFM18070S3AXCC furnace and compatible WFM-series models. This transition bottom directs combustion flue gases from the heat exchanger into the vent chimney connector, maintaining proper draft and a safe, sealed venting path.
Using the correct factory transition piece prevents flue-gas leakage, backdrafting, and premature corrosion of surrounding sheet metal.
The OEM Goodman transition is stamped to exact factory dimensions for a leak-free fit and correct draft geometry. Generic universal transitions may require trimming or added sealant and are not guaranteed to match the original venting profile. For a safety-critical flue component, OEM is strongly recommended.
Moderate — requires basic sheet-metal tools and access to the vent area. Always shut off gas and power before servicing. Professional installation recommended for combustion-venting work.