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This genuine OEM Goodman 20201901 drain hose tube is a direct-fit replacement for the AMVM961005DXAA modulating condensing furnace and related Goodman/Amana high-efficiency models. It routes acidic secondary-heat-exchanger condensate to the drain trap. Because this is one of the longer, pre-formed hoses in the drain assembly, using the correct factory part matters for a clean, kink-free run that drains fully every cycle.
The OEM hose is molded with the exact routing bends this furnace requires, so it clears the blower and cabinet without collapsing. Generic tubing may fit the barbs but pinch at the bends, causing standing water and pressure-switch faults. The factory hose is the reliable choice for a condensing furnace.
Easy. Press the hose onto its fittings and secure any clip; no cutting or tools required. Budget 5–10 minutes. Flush the drain trap and clear any sludge while access is open to prevent repeat clogs.