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The Goodman 22309501 Flue Pipe is a genuine OEM venting component designed for the Goodman GKS90703BXAE gas furnace. This flue pipe carries combustion byproducts from the inducer/heat exchanger to the vent system, and its exact factory geometry is critical for safe, code-compliant venting. A cracked, warped, or corroded flue section can leak flue gases or trigger pressure-switch faults — replace it with the correct OEM part to keep the furnace venting safely.
Because flue routing is a safety-critical, dimensionally exact part, we strongly recommend the genuine OEM Goodman flue pipe. It matches the original bend radius, length, and connection diameters so gaskets seat correctly and the draft-pressure switch reads properly. Generic substitutes risk improper venting and failed inspections — not worth the small savings on a combustion component.
Moderate (2 of 5). Shut off gas and power, disconnect the vent connections and any clamps or gaskets, remove the old flue pipe, and install the replacement ensuring all joints are sealed and secure. Verify draft after startup. Best handled by a confident DIYer or HVAC technician; allow 30–45 minutes.