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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube engineered as a direct-fit replacement for the AMS950703BXAB gas furnace and other compatible Goodman/Amana models. This flexible drain line carries condensate away from the furnace's secondary heat exchanger and drain pan, keeping the burner assembly dry and preventing overflow that can trigger safety lockouts or water damage. A cracked, brittle, or clogged drain hose is one of the most common causes of nuisance shutdowns on high-efficiency 95% furnaces — replacing it with the correct factory part restores proper drainage.
OEM vs. Generic: This is the genuine Goodman OEM hose, cut to the exact factory length and diameter so it seats correctly on the drain fittings without kinking. Universal generic hose can be trimmed to fit but often uses a thinner wall that degrades faster and may not match the barb sizing, leading to leaks. For a leak-free, drop-in repair, the OEM part is the reliable choice.
Install difficulty: Easy (DIY-friendly). Power down the furnace, disconnect the old hose from the drain pan and trap, slide the new 20201902 into place, and secure the clamps. Typical replacement takes 10–15 minutes with basic hand tools. Always verify compatibility with your unit's serial/model before ordering.