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The Goodman 20201901 Condensate Drain Hose Tube is a genuine OEM part for the WFD195070S3BAA gas furnace. This molded tube carries corrosive condensate from the furnace's collector box and drain trap to the cabinet outlet. Because condensing furnaces produce acidic water, a compromised hose can cause slow leaks, corrosion, and pressure-switch trips that shut the unit down on the coldest days. Installing the exact factory hose restores reliable drainage.
The OEM 20201901 matches the factory bend radius, length, and fitting diameters exactly, so it seats without kinks or adapters. Generic replacements are often straight tubing that must be shaped and trimmed, and a poor fit here can cause condensate backup and nuisance lockouts. The genuine part is the safe choice on a combustion appliance.
Easy (DIY-friendly). Roughly 15–20 minutes. Shut off power, remove the old hose from its fittings, route the new tube along the same path, and secure both ends. Restart and verify free-flowing drainage with no leaks or error codes.
Backed by genuine Goodman quality. In stock and ready to ship.