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The Goodman 20201901 is a genuine OEM condensate drain hose/tube molded for the AMVM960603BXAA modulating gas furnace. It moves acidic condensate through the furnace's drain system along the factory-designed path, connecting the collector box, trap, and outlet. Its pre-formed shape maintains proper slope and clearance so water drains completely instead of pooling — a common source of pressure-switch lockouts and cabinet leaks when the wrong hose is used.
Substitute hose bent by hand rarely holds the correct radius and can collapse or sag, creating low spots that hold water. The OEM 20201901 is molded to Goodman's exact contour and diameter, so it seats along the original route without modification and keeps the drain path clear.
Easy (1 of 5). A quick clamp-and-slip replacement completed in minutes with basic hand tools. Disconnect furnace power before service and clear residual condensate. Reinstall with a continuous downward slope to avoid airlocks and standing water.
Genuine OEM part, fit guaranteed, and fast shipping from NationalHVACParts.com.