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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube for the GMV950453BXAB 96% AFUE two-stage variable-speed gas furnace. Cut and formed at the factory to a precise 23" length, this hose routes acidic condensate from the drain system out of the cabinet along Goodman's engineered path, maintaining proper slope so water drains freely without kinks or air locks.
The OEM Goodman hose arrives at the correct 23" length with matching barb diameters, so it installs without trimming or guesswork. Generic tubing cut on-site can end up too short or too long, throwing off drainage pitch and inviting leaks and condensate backup. The exact-fit OEM part ensures a clean, reliable drain.
Difficulty: Easy (1/5) — Typical time 10 minutes. Power off the furnace, remove the old hose from its barbs, seat the new 23" hose fully on both fittings, and secure clamps. No tools required. Confirm your model and serial before ordering.
Replacement part only. Follow all Goodman service instructions and local codes.