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The Goodman 20201901 is a genuine OEM condensate drain hose tube formed specifically for the Goodman ACSH960453BXAA condensing furnace and compatible 96% AFUE models. It routes acidic condensate from the secondary heat exchanger through the drain trap, maintaining a sealed, correctly shaped path that keeps the pressure-switch circuit stable and prevents cabinet leaks.
This genuine Goodman OEM hose is molded to the exact length, bends, and bore of the original part. Generic bulk tubing often kinks at the molded elbows, uses the wrong inner diameter, or slips off the barbed fittings — causing condensate leaks and nuisance pressure-switch lockouts. The OEM tube installs without modification and holds its shape.
Easy — typically a 5–10 minute job. Remove the old hose from its barbed fittings, route the new hose along the same path, and secure with the original clamps. Always shut off power before servicing. Verify there are no kinks and that both ends seat fully so the condensate drains freely.