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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube engineered for the AMVC950704CXAE high-efficiency gas furnace and compatible Goodman/Amana 90%+ AFUE models. It routes condensate away from the secondary heat exchanger and collector box to the drain trap, preventing water backup, nuisance lockouts, and heat-exchanger corrosion.
The OEM 20201902 is molded to the exact inside diameter and length required by the AMVC950704 cabinet, so it seats on the collector-box nipples without kinking. Generic universal drain tubing is a lower-cost option but may require cutting to length and can crimp on tight bends, restricting flow. For a condensing furnace where drainage is critical, OEM is recommended.
Easy (1/5). Slip the hose onto the collector-box and trap fittings, secure the clamps, and verify a downhill slope with no low spots. No tools beyond pliers required. Always shut off power and gas before servicing.