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The Goodman 0128F00006 is a genuine OEM chimney transition bottom for AMH80604BXBA gas furnaces and compatible Goodman/Amana models. This venting component forms the sealed transition between the furnace's flue collar and the vent connector, directing combustion byproducts safely out of the appliance. A properly fitted transition prevents flue-gas leakage and maintains correct draft.
This OEM Goodman transition matches the factory flange dimensions and bolt pattern precisely, so it seals without modification. Generic or fabricated adapters risk gaps that leak flue gases — an unacceptable safety compromise on a venting part. Choose OEM.
Easy (2/5). Bolts into place with a fresh gasket or approved sealant. Shut off gas and power before servicing. Always verify proper draft and check for flue-gas leaks with the furnace running after installation.