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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube for the Amana/Goodman AMVM961155DXAA high-efficiency condensing furnace. Cut and formed to length at the factory, this hose routes acidic combustion condensate from the drain system out of the furnace cabinet without kinks or improper slope, protecting the heat exchanger and preventing water damage.
The pre-cut 23" OEM length means no guesswork — install it and the routing lands exactly where the engineers intended. Generic bulk tubing must be measured and trimmed on site, and an incorrect length introduces sags or kinks that trap water and cause pressure-switch lockouts.
Very Easy (1/5). About 5–10 minutes: kill power, photograph the routing, release the clamps, pull the old hose, and press the new 23" hose onto the same fittings. Confirm downhill slope and clear flow before restarting the furnace.
Keep a spare on hand — condensate hoses stiffen and crack with age and are a frequent source of furnace leaks.