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The Goodman 20201802 Drain Hose Tube is a genuine OEM condensate line for the GCH950453BXAD high-efficiency gas furnace. This flexible, heat- and acid-resistant tube routes condensate between the heat exchanger, drain trap, and outlet, ensuring reliable drainage on 95% AFUE condensing furnaces. Brittle, kinked, or split hoses are a frequent cause of water leaks and condensate backups that trip the pressure switch.
Condensate is mildly acidic and lines run near hot furnace components, so material quality matters. This genuine OEM hose is cut to the correct length and made from tubing rated for Goodman's operating conditions, unlike generic hose that can harden or degrade prematurely and require trimming to fit.
Easy (1/5) — Slide the old hose off its barbed fittings, route the replacement along the same path, and secure it. No special tools required; verify there are no kinks that could restrict drainage.