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The Goodman 20201901 Drain Hose Tube is a genuine OEM condensate drain line engineered specifically for the Goodman/Amana AKSS920904CXAA gas furnace and compatible high-efficiency models. During normal operation, a condensing furnace produces water that must be carried away from the heat exchanger and inducer assembly. This flexible drain tube routes that condensate safely to the drain trap and outlet, preventing pooling, corrosion, and nuisance lockouts.
This is the genuine Goodman OEM part, cut and formed to the exact length and bend radius the AKSS920904CXAA cabinet requires. Generic replacement tubing is cheaper but often needs trimming and can kink or leak at the connection points, leading to water damage and callbacks. Choosing OEM guarantees a leak-free fit the first time.
Rating: Easy (1/5). Replacement is a simple slip-on job — power down the furnace, disconnect the old hose from the fittings, route the new tube along the original path, and secure the connections. Most homeowners complete this in under 15 minutes with no special tools. Always confirm the drain trap is clear before reassembly.