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The Goodman 20201802 Drain Hose Tube is a genuine OEM condensate drain component engineered for the GMV950453BXBA high-efficiency gas furnace and compatible Goodman/Amana 90%+ AFUE models. This flexible tube routes condensate away from the secondary heat exchanger and collector box, keeping your furnace running dry, safe, and code-compliant.
Over time, factory drain tubing can crack, harden, or clog with scale and biofilm — leading to nuisance lockouts, water pooling, and pressure-switch faults. Installing the exact OEM tube restores proper drainage and eliminates leak points.
OEM (recommended): Molded to the exact bend radius, wall thickness, and connector diameter Goodman engineered for this cabinet — no leaks, guaranteed fit. Generic: Universal tubing may require trimming and can kink or seep at the collector box.
Easy (1 of 5). No special tools required. Cut power, disconnect the old tube at both ends, seat the replacement, and confirm a snug fit. Typical replacement time is under 15 minutes.
Always shut off gas and electrical power before servicing. Professional installation recommended if you are unsure.