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The Goodman 20201901 Drain Hose Tube is a genuine OEM condensate drain line for the GKS91155DXAF high-efficiency gas furnace. This flexible, chemical-resistant tube routes acidic condensate from the drain trap to the outlet, keeping the drainage path leak-free and correctly pitched for reliable, code-compliant operation.
Generic vinyl tubing can kink, harden, or degrade against acidic condensate, causing back-ups and overflow. This genuine Goodman hose is molded to the correct length and bend radius for your furnace, resisting condensate corrosion and maintaining proper drainage slope.
Easy (2/5) — Slips onto the trap and drain fittings with existing clamps; about 10 minutes with basic hand tools. Cut power before servicing and check for leaks after refilling the trap.