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The Goodman 22309501 Flue Pipe is a genuine OEM exhaust venting component engineered for the Goodman GKS90703BXAB gas furnace. This flue pipe routes combustion byproducts safely from the heat exchanger to the vent system, and its exact factory dimensions ensure a leak-free seal with the inducer assembly and vent connector.
Unlike universal aftermarket pipes that require cutting and fitment adjustments, this OEM part is a direct drop-in replacement with pre-formed bends and gasket surfaces that match the GKS90703BXAB cabinet exactly. That means a proper seal, correct draft, and no risk of flue gas leakage.
Moderate — Requires furnace disassembly and access to the inducer/vent area. We strongly recommend a licensed HVAC technician, as improper flue installation can cause dangerous carbon monoxide exposure.