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The Goodman 22309501 Flue Vent Pipe is a genuine OEM replacement designed for the Goodman GKS90904CXAD 90%+ AFUE gas furnace. This internal flue component channels combustion byproducts from the heat exchanger to the induced-draft blower and out the vent system, maintaining proper draft and safe, code-compliant operation.
Flue components handle hot, acidic exhaust gases — a poor-fitting generic pipe can leak combustion products or crack under thermal cycling. The genuine OEM 22309501 is built to the exact factory dimensions and material spec, ensuring a sealed pathway and long service life.
Moderate (2/5). Requires opening the furnace cabinet and removing the existing flue section. Best performed by an HVAC technician; always shut off gas and power and verify vent draft after installation.