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The Goodman 20201802 is a genuine OEM condensate drain hose tube engineered for the WGFM195090S4CAC 95% AFUE modulating gas furnace and other compatible Goodman/Amana high-efficiency models. High-efficiency condensing furnaces produce acidic condensate during normal operation, and this molded drain tube routes that moisture safely away from the heat exchanger and inducer assembly to the drain trap. Using the correct OEM tube prevents leaks, kinks, and misrouted condensate that can trigger pressure-switch faults or water damage.
This is the factory OEM component, molded to the exact geometry and connection points of your furnace's drain system. Universal aftermarket hose can require cutting, adapters, and hose clamps that leak over time. The OEM 20201802 drops into the original clips and fittings for a sealed, correct fit the first time.
Easy (DIY-friendly). Power down the furnace, disconnect the old tube from the drain fittings, seat the replacement, and confirm a clear condensate path. Typically completed in 10–15 minutes with no special tools.