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The Goodman 22309501 is a genuine flue pipe vent connector built for the GKS90904CXAB gas furnace. This component channels combustion exhaust gases from the heat exchanger and inducer assembly to the venting system, maintaining the sealed pathway that a high-efficiency furnace requires for safe, code-compliant operation. A cracked, corroded, or misaligned flue pipe can allow flue gas leakage, disrupt inducer draft, and trip the pressure switch — so a factory-correct replacement is essential for both performance and safety.
The OEM 22309501 is dimensioned to seat perfectly against the furnace's exhaust ports and gaskets, preserving the airtight seal critical for proper draft and safe venting. Generic flue components can introduce leaks or draft imbalances that compromise safety. For combustion-related parts, always choose OEM.
Moderate — Plan 30–45 minutes. Because this part handles combustion venting, replacement should be performed by a qualified HVAC technician. Power off the furnace, remove the old flue pipe and its gasket, install the new pipe with a fresh seal, and verify draft and for flue gas leaks before returning to service.