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The Goodman 20201802 Drain Hose Tube is a genuine OEM condensate drain component engineered for the Goodman/Amana AMV90704CXBB 90%+ AFUE gas furnace. This flexible hose routes condensate from the secondary heat exchanger and collector box toward the drain trap, preventing water backup that can trigger pressure-switch faults and nuisance lockouts.
The genuine OEM 20201802 is molded to the exact bend radius and connection diameters of the AMV90704CXBB drain assembly, ensuring a leak-free seal at both ends. Generic universal hose can be cut to length but often requires additional clamps and may kink at tight bends, restricting flow. For reliable, long-term condensate management we recommend the OEM part.
Easy (1/5). Slip-on hose replacement — disconnect the old hose, seat the new one on the fittings, and secure the clamps. No tools beyond a screwdriver or pliers are typically required. Always shut off power and gas before servicing.