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The Goodman 20201802 is a genuine OEM condensate drain hose tube for the GCH90453BXAA gas furnace and compatible 90%+ AFUE models. This short section of high-temperature tubing routes acidic condensate between the collector box, drain trap, and inducer housing. Over time original hoses stiffen, crack, or clog with scale — leading to water leaks and pressure-switch faults. Replacing worn tubing during any condensate-system repair is inexpensive insurance.
The OEM 20201802 is pre-cut to the exact length and bend the furnace cabinet requires, with the correct inner diameter for a leak-free slip fit on the factory barbs. Generic tubing must be measured and trimmed and often does not seal cleanly, inviting drips and nuisance lockouts.
Easy (1/5). Power off, slide the old hose off the barbed fittings, push the new hose fully onto both connections, and confirm a snug fit. A 5–10 minute job, no tools required.
Questions on your condensate layout? Reach us at info@nationalhvacparts.com.