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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose/tube for AMVC950905CXAB high-efficiency modulating furnaces. Its precise 23" length is engineered to reach from the collector box or drain fitting to the trap without excess slack or tension, keeping the acidic condensate flowing cleanly out of the cabinet.
Because this hose is cut to an exact 23" length, an OEM replacement drops in without trimming or guesswork. Generic tubing you cut yourself risks the wrong bore size, kinks at bends, or an incorrect slope that traps water and triggers pressure-switch faults.
Easy — around 10 minutes. Turn off power, pull the old 23" hose from its barbed fittings, and press the new one fully into place on both ends. Maintain a downhill slope to the trap and confirm no leaks during the first cycle.