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The Goodman 20201901 is a genuine OEM drain hose tube built for the AMVC950905DXAA two-stage/modulating gas furnace and compatible Goodman and Amana high-efficiency platforms. It carries condensate from the secondary heat exchanger and collector box to the drain trap, keeping the furnace's drainage system sealed and free-flowing. A properly seated OEM hose prevents leaks that lead to corrosion, pressure-switch trips, and callbacks.
The OEM 20201901 matches Goodman's exact routing length and barb diameter, so it clears internal components without pinching. Generic tubing often requires trimming and can slip off warm fittings over time. For a sealed, trouble-free condensate path, the factory part is the reliable choice.
Easy (1/5) — Push-on hose replacement. Cut power to the furnace, detach the old tube from the collector box and trap, press the new hose fully onto both barbs, and confirm free drainage. No adhesives or special tools needed.