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The Goodman 20201802 is a genuine OEM condensate drain hose tube engineered for the AMH950704CXAB high-efficiency gas furnace. This flexible tube routes condensate away from the secondary heat exchanger and collector box to the drain trap, keeping your furnace running clean and dry. A cracked, brittle, or clogged drain tube is one of the most common causes of nuisance lockouts on 90%+ AFUE furnaces — replacing it with the correct OEM part restores proper drainage the first time.
OEM 20201802 tubing is molded to the exact length, diameter, and bend radius of the factory part, so it seats correctly at the collector box and trap without kinking. Generic aftermarket hose often requires trimming and can collapse under vacuum, leading to slow drainage and repeat pressure-switch faults. For reliable, leak-free performance we recommend the genuine OEM part.
Easy (1 of 5). A basic DIY replacement — power down the furnace, disconnect the old tube, seat the new one, and secure the clamp. Typically completed in under 15 minutes with no special tools.