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The Goodman 4053501S is a genuine OEM chimney collar (flue vent adapter) for the GDT070-3 gas furnace. This collar mounts at the furnace vent outlet and provides the correct transition and seal between the furnace flue and your vent pipe or chimney connector. A properly fitted collar ensures combustion byproducts are drafted safely out of the home and prevents flue gas leakage at the connection.
This genuine Goodman OEM collar is dimensioned to match the furnace's vent outlet exactly. Universal collars often require shimming or sealing workarounds that can leak. For a combustion-venting component, the factory part is the safe, code-compliant choice.
Easy to Moderate. The collar is typically fastened at the vent outlet with sheet-metal screws and sealed per code. Basic hand tools are required. Always inspect the full vent connection and verify proper draft after any venting work; when in doubt, consult a licensed technician.