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The OEM 22309501 flue vent pipe is a factory replacement for the Goodman GMH950704CXAE 96% AFUE condensing gas furnace. It carries combustion products from the inducer/heat exchanger to the venting system and is engineered to withstand the heat and acidic condensate present in high-efficiency furnaces. A corroded, cracked, or misfit flue pipe can cause exhaust leaks, pressure-switch faults, and unsafe operation.
The genuine Goodman flue pipe matches the factory diameter, gasket seats, and mounting geometry exactly, so it seals correctly to the inducer housing and vent connection. Generic substitutes may not align with Goodman's ports, risking flue-gas leakage — a safety hazard. Always use the OEM part for venting components.
Moderate (2/5) — Requires removing vent connections and reseating gaskets. Because it handles combustion gases, verify all seals and test for proper draft. Shut off power and gas; if unsure, use a licensed HVAC technician.