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The Goodman 20201901 is a genuine OEM condensate drain hose tube built for the GCH950703BXAC 95% AFUE gas furnace and compatible Goodman high-efficiency units. It carries condensate from the furnace's secondary heat exchanger and collector box to the drain trap and outlet. Because condensate from a condensing furnace is mildly acidic, drain hoses eventually harden, crack, or accumulate biofilm that chokes flow. A fresh OEM hose keeps drainage clear and helps prevent pressure-switch nuisance shutdowns and cabinet water damage.
The genuine Goodman 20201901 is pre-cut to the exact length and bore your furnace requires, seating tightly on the factory drain fittings. Generic tubing often needs trimming, may slip loose, or wear prematurely against the acidic condensate. OEM fit means fewer callbacks and dependable performance.
Plan for a 15-minute job with no special tools. Shut down the furnace, remove the old hose from its barbed connections, install the new 20201901 along the same route, and press each end fully home. Verify there are no sags or kinks, then run a heat cycle to confirm condensate drains freely.