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The Goodman 20201902 23-inch Drain Hose Tube is a genuine OEM condensate line pre-cut to length for the AMH950904CXAA high-efficiency gas furnace. This longer 23" run carries acidic combustion condensate from the secondary heat exchanger to the drain trap, keeping moisture away from sensitive electronics and metal cabinet surfaces.
Cutting generic tubing to length risks a poor barb seal and kinks that block condensate flow, triggering pressure-switch lockouts and no-heat calls. The genuine OEM 20201902 arrives at the correct 23" length with the proper diameter for a clean, drip-free installation.
Easy (1/5) — Slip-on replacement secured with a clamp or retainer. Basic hand tools only. De-energize the furnace and shut off the gas before beginning.