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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube engineered for WGFM195070S3BAC high-efficiency gas furnaces. It routes condensate away from the secondary heat exchanger and collector box to the drain trap, and its correct length and bend radius are critical to preventing standing water, freeze-ups, and nuisance pressure-switch lockouts.
The genuine OEM 20201902 is molded to the exact length and inner diameter Goodman specifies, so it seats on the collector-box and trap fittings without leaks. Universal bulk tubing often has the wrong ID or wall thickness, leading to slow leaks and condensate damage. For a condensing furnace, OEM fit is the reliable choice.
Easy (1/5). Slip the old hose off the fittings, route the new tube along the same path, and secure it. Basic hand tools only. Always confirm the condensate trap is clear before restarting the furnace.
Compatible model: WGFM195070S3BAC. Verify your OEM part number before ordering.