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The Goodman/Amana 20201802 Condensate Drain Hose Tube is a genuine OEM replacement component for the AMH950904CXAD high-efficiency gas furnace and other compatible 90–96% AFUE Goodman and Amana models. This flexible drain tube routes acidic condensate away from the secondary heat exchanger and collector box, preventing leaks, water damage, and nuisance shutdowns caused by clogged or cracked drainage lines.
OEM vs. Generic: The genuine OEM 20201802 is molded to the exact bend radius and connector diameter specified by the factory, ensuring a leak-free seal at every fitting. Generic universal tubing often requires trimming and may not seat correctly on the collector-box ports, risking condensate leaks that corrode nearby components. For reliable, warranty-safe drainage, OEM is the recommended choice.
Installation Difficulty: Easy (1/5). Replacement typically takes under 15 minutes with basic hand tools. Power down the furnace, disconnect the old hose, clear any blockage, and snap the new tube into place. No specialized HVAC certification required for this repair, though annual condensate-system inspection is recommended.