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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube built for the WGFM295115V5DAA high-efficiency gas furnace. Cut to a factory-exact length, it spans the run between the furnace's condensate collector box and the drain connection, ensuring proper slope and unobstructed flow for reliable operation.
The advantage of this OEM tube is its precise 23-inch length and correct bore — no trimming, no guesswork, and a guaranteed press-fit on Goodman fittings. Aftermarket hose sold by the foot must be cut and sized in the field, and the wrong diameter or compound can collapse under draft-induced vacuum or degrade against condensate acids. The genuine part installs right the first time.
Easy (1/5). Shut off power and gas, remove the old 23-inch tube, route the replacement along the same path maintaining a downward slope, and secure the fittings. Verify condensate drains freely and no leaks are present.