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The Goodman 20201802 Condensate Drain Hose Tube is a genuine OEM replacement designed for the GKS91155DXAB gas furnace and compatible Goodman GKS9-series equipment. This flexible tube routes condensate between the collector box, drain trap, and outlet during normal high-efficiency operation, ensuring proper drainage and preventing water backup that can trip the pressure switch or damage internal components.
This OEM Goodman hose is cut and formed to the exact length and inside diameter the GKS9 drain system requires, so it seats cleanly on the factory barbs without kinking. Generic bulk tubing may not match the ID, can slip off connections, and risks leaks. For a low-cost part in a leak-sensitive circuit, factory OEM is the safe choice.
Easy (1/5). Slide the old hose off its barbed fittings, push the replacement fully onto both connections, and confirm a snug fit. No tools required in most cases; under 10 minutes. Cut power to the furnace before servicing.