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The Goodman 20201901 Drain Hose Tube is a genuine OEM condensate routing component for the Amana/Goodman AMS951155DXAB high-efficiency gas furnace. Condensing furnaces rely on a correctly shaped network of drain hoses to carry acidic condensate from the secondary heat exchanger and collector box to the trap and drain. This factory tube is molded to the exact contour and length required so it seats securely on the OEM fittings and maintains proper downhill flow.
OEM vs. Generic: This tube's specific bends and connection ends are matched to the AMS951155DXAB cabinet layout. The OEM 20201901 installs without cutting or splicing, while generic replacements risk kinking at the molded bends or loosening at the barbs — both of which cause condensate backup, nuisance pressure-switch trips, and potential water damage. Genuine parts protect the whole drain system's reliability.
Installation Difficulty: Easy (⭐⭐☆☆☆). Usually 15 minutes for a handy homeowner — shut off power, release the retaining clamps, note the routing path, remove the old hose, and press the new one onto the matching fittings. Verify a continuous downhill slope and leak-test with water before returning the furnace to service.