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The Goodman 20201802 is a genuine OEM condensate drain hose tube engineered for the AMVC950704CXBA variable-capacity gas furnace and other compatible Goodman/Amana high-efficiency models. This flexible tube routes condensate away from the secondary heat exchanger and collector box to the drain trap, keeping the combustion area dry and preventing nuisance lockouts on 90%+ AFUE furnaces.
The genuine OEM 20201802 is molded to the exact length and bend radius specified by Goodman, ensuring a leak-free seal at the collector box and trap. Generic universal hose can kink, sag, or fit loosely at the barbed connections — leading to condensate leaks and pressure-switch faults. For a variable-speed furnace, we recommend the OEM part.
A basic DIY replacement (5–10 minutes). Power down the furnace, remove the old hose from its fittings, seat the new tube fully on each barb, and confirm the drain trap is primed. No special tools required.
Compatibility note: Always verify your furnace serial/model number before ordering. Contact info@nationalhvacparts.com if you need help confirming fit.