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The Goodman 22309501 Flue Vent Pipe is a genuine OEM exhaust component built for the WGFM195090S4CAD 95% AFUE modulating gas furnace and other compatible Goodman/Amana high-efficiency models. The flue pipe carries combustion byproducts from the inducer to the vent system. Cracks, warping, or a poor seal can allow flue-gas leakage, condensate escape, and pressure-switch faults — making an exact-fit replacement essential for safe, code-compliant operation.
OEM vs. Generic: The genuine Goodman 22309501 is molded to the exact length, diameter, and connection geometry your furnace requires. Generic vent sections often demand cutting, couplers, or extra sealant, introducing leak points and combustion-safety risks. The OEM part seats cleanly against factory gaskets and preserves your equipment warranty.
Install difficulty: Moderate. Plan on 30–45 minutes. Shut off power and gas, disconnect the existing flue section, transfer or replace gaskets, and confirm all joints are sealed. Because this part handles combustion exhaust, a combustion-analysis and leak check by a licensed HVAC technician is strongly recommended after installation.