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The Goodman 20201901 is a genuine OEM condensate drain hose tube engineered as a direct-fit replacement for the GCH950905DXAB high-efficiency gas furnace and compatible Goodman models. During normal operation a condensing furnace produces water vapor that must be drained safely away from the heat exchanger and inducer assembly. This flexible drain tube routes that condensate to the drain trap, preventing pooling, corrosion, and nuisance lockouts. A cracked, brittle, or disconnected drain hose is one of the most common causes of water leaks and pressure-switch faults, so replacing it with the correct factory part restores reliable drainage.
The genuine OEM 20201901 is molded to the exact length, bend radius, and connector diameter specified by Goodman, ensuring a leak-free seal at every fitting. Generic aftermarket tubing often requires trimming or forced fits that can kink, restrict flow, or pop loose over time. For a condensing furnace where drainage is critical to safe operation, the OEM part is the reliable choice.
Easy (1/5). Power down the furnace, disconnect the old hose from the drain trap and collector, then slide the new tube into place and secure the connections. No special tools required. Verify proper drainage after restarting.