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The Goodman 20201802 Drain Hose Tube is the genuine OEM condensate hose for the Amana/Goodman AMVM961005DXBA modulating condensing furnace and other AMVM96-series units. It carries acidic condensate from the collector box or secondary heat exchanger to the drain trap and connects the internal drainage path that keeps high-efficiency furnaces running dry and code-compliant.
Because this hose is pre-molded to a specific length and bend radius, the OEM 20201802 drops in without kinking or stretching. Generic straight tubing often kinks at the factory bends, trapping condensate and triggering pressure-switch faults. The OEM part restores the exact routing the furnace was designed around.
Difficulty: Easy (1/5). Power off the furnace, slide the old hose off both fittings, and press the replacement onto the same ports in the original orientation. Secure any clamps, then run the furnace and check for leaks. Under 10 minutes with no special tools.