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The Goodman 22309501 is a genuine OEM flue vent pipe engineered as a direct-fit replacement for the Goodman GKS90905DXAB high-efficiency gas furnace. This internal venting component carries combustion byproducts from the inducer/heat-exchanger assembly to the vent outlet, maintaining proper draft and safe evacuation of flue gases. A corroded, cracked, or warped flue pipe can allow flue-gas leakage, poor combustion, and pressure-switch faults — making prompt replacement a safety priority.
This OEM flue pipe matches the exact diameter, length, and mounting geometry of the GKS90905DXAB, ensuring gas-tight seals at every joint. Generic or fabricated substitutes risk improper fit, draft problems, and code-compliance issues on a combustion-venting component. For safety-critical venting, OEM is strongly recommended.
Moderate (3/5) — Involves accessing the burner/vent compartment and re-sealing joints. Because this handles combustion gases, professional installation and a post-repair combustion/draft check are advised. Typical time: 30–45 minutes.