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The Goodman 20201901 is a genuine OEM condensate drain hose tube built for the WGFD293070V4CAA high-efficiency gas furnace and related Goodman/Amana condensing models. It carries acidic condensate from the collector box and drain pan to the trap, keeping the heat exchanger area dry and protecting internal components from moisture damage.
The OEM 20201901 is dimensioned to the factory drain layout for a leak-free, drop-in fit. Generic replacements cost less but often need cutting and extra clamps, and imperfect seals can trigger pressure-switch faults. Choose OEM when correct fitment and long-term reliability matter.
Easy (1/5) — Slip-fit tube secured with a hose clamp. No special tools; about 10 minutes. Disconnect power and gas before working on the furnace.