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The Goodman 22309501 flue pipe is a genuine OEM exhaust vent component built for the GMH950904CXAB high-efficiency condensing gas furnace and compatible Goodman/Amana 90%+ AFUE models. It channels combustion gases from the inducer assembly through the venting system, maintaining the sealed, code-compliant exhaust path a condensing furnace depends on for safe operation.
The OEM Goodman 22309501 is dimensioned to seat exactly against the inducer housing and vent gaskets of the GMH950904CXAB, preserving the airtight seal required for a sealed-combustion furnace. Because a flue pipe carries combustion byproducts, a poor generic fit can leak flue gases — a safety hazard. For any component in the exhaust path, the factory OEM part is strongly recommended.
Plan on 30–45 minutes. Shut off gas and electrical power, remove the furnace access panel, detach the old flue pipe from the inducer and vent connections, install the 22309501 with all gaskets and clamps properly seated, and confirm every joint is airtight. Because this part handles combustion gases, verify draft and check for leaks with the appropriate instruments — if you are not comfortable working on venting, have a licensed HVAC technician perform the installation.