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The Goodman 20201802 is a genuine OEM condensate drain hose tube engineered for the AMVC950905DXAA modulating gas furnace and compatible Goodman/Amana high-efficiency models. This short connector routes condensate from the furnace's collector box and drain trap assembly, preventing water buildup that can trigger pressure-switch faults or nuisance lockouts. Using the factory-spec hose ensures a leak-free fit at the barbed fittings and long-term chemical resistance to acidic condensate.
The OEM 20201802 is molded to the exact length and inside diameter Goodman specifies, so it seats fully on the collector-box and trap barbs without kinking. Generic hose cut to length may fit but can loosen, restrict flow, or degrade faster in acidic condensate — risking leaks near the burner assembly. For a critical drain path we recommend the OEM part.
Easy (1/5) — Slip-fit replacement. Power down the furnace, pull the old hose from the barbed fittings, seat the new tube, and confirm the drain trap is clear. No tools or sealant required. Always verify condensate flows freely before returning the unit to service.