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The Goodman 20201901 is a genuine OEM condensate drain hose tube built for the AMV90453BXBA high-efficiency gas furnace. In a condensing furnace, the secondary heat exchanger extracts additional heat and produces acidic condensate; this tube carries that water safely to the drain trap and out of the cabinet. Aged or split tubing leads to leaks, corrosion, and nuisance pressure-switch trips.
The genuine OEM 20201901 arrives pre-formed to the exact routing path inside the AMV90453BXBA, seating firmly on the drain fittings for a reliable seal. Generic replacement hose requires cutting and coaxing to fit and is prone to kinks that trap condensate. For leak-free performance, OEM is the safe choice.
Easy (1/5) — About 10 minutes. Shut off power, loosen the hose clamps, pull the old tube, and slide the new one onto the matching fittings. Only basic hand tools are needed. Verify free-flowing drainage before returning the furnace to service.