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The Goodman 20201901 Drain Hose Tube is a genuine OEM condensate line built for the AMH950905DXAD high-efficiency gas furnace and related Goodman/Amana 95% AFUE platforms. It carries acidic condensate from the collector box and secondary heat exchanger to the drain system, keeping the burner compartment dry and preventing nuisance shutdowns caused by water intrusion or blocked drainage.
The OEM 20201901 is pre-formed to the correct routing length and connection diameters for this furnace, so it seats cleanly without leaks. Generic hose typically requires trimming and can sag or kink, leading to condensate pooling that triggers the pressure switch and locks out the unit. Genuine parts eliminate that guesswork.
Easy (1/5). Shut off power to the furnace, slide the old hose off both barbed fittings, and press the replacement on until fully seated. No tools needed. Inspect the trap and grommets for buildup while access is open.