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The Goodman 20201802 Condensate Drain Hose Tube is a genuine OEM replacement engineered for AMH950453BXAC gas furnaces and compatible Goodman/Amana models. This flexible drain tube routes condensate away from the secondary heat exchanger and drain trap, preventing water backup, corrosion, and nuisance lockouts. Using the factory part guarantees the correct length, diameter, and fitting geometry so your drain system seals the first time.
Generic drain tubing is sold by the foot and rarely matches the molded bends and barb fittings of the factory part, which leads to leaks and improper drainage slope. This genuine OEM 20201802 drops in with no cutting or adapters and preserves your furnace warranty coverage.
Easy (1/5). No special tools required — disconnect the old tube, seat the replacement onto the drain fittings, and confirm a clean downhill run to the trap. Most homeowners and technicians complete this in under 10 minutes. Always shut off power to the furnace before servicing.