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The Goodman 20201902 Condensate Drain Hose Tube is a genuine OEM replacement component engineered for the GCV90905DXBA 90%+ AFUE gas furnace and compatible Goodman models. This 23-inch flexible tube routes condensate away from the secondary heat exchanger and drain trap, preventing water pooling that can trigger pressure-switch lockouts and corrosion. A cracked, brittle, or disconnected drain hose is one of the most common causes of nuisance furnace shutdowns during the cooling and high-efficiency heating seasons.
OEM vs. Generic: This is the factory Goodman part, cut to the exact length and diameter your furnace's drain layout requires. Generic universal tubing may fit loosely, kink at bends, or require field splicing — increasing the risk of leaks and callbacks. The OEM 20201902 drops in without modification and preserves your equipment warranty coverage.
Install Difficulty: Easy (1/5). No tools beyond a screwdriver or spring clamp pliers are typically required. Power down the furnace, disconnect the old hose at both fittings, seat the new tube, and secure the clamps. Most homeowners and technicians complete the swap in under 10 minutes.