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The Goodman 22309501 Flue / Vent Pipe is a genuine OEM venting component for GKS90904CXAA gas furnaces. It channels combustion byproducts from the heat exchanger to the exhaust vent, a critical safety path that must maintain proper sealing and dimensions to vent flue gases correctly.
Flue components are a safety-critical part of the venting system. The genuine 22309501 is formed to the precise length, diameter, and bend of the original, ensuring gas-tight connections and correct draft. Generic or fabricated pipe risks poor seals, backdrafting, and carbon monoxide hazards. Always use the factory part here.
Moderate (3/5). Requires shutting off gas and power, disconnecting the existing flue, verifying gasket/seal integrity, and confirming proper draft after reassembly. Because this is a combustion-venting part, we strongly recommend installation by a licensed HVAC professional and a post-install CO check.