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The Goodman 20201901 Drain Hose Tube is a genuine OEM condensate line for the GCH950905DXAA high-efficiency gas furnace. This pre-formed tube routes corrosive combustion condensate through the drain system between the collector box, trap, and outlet. Over years of exposure to acidic water, drain hoses stiffen, crack, or collapse — leading to leaks, standing water, and nuisance pressure-switch lockouts that mimic more serious failures.
The OEM Goodman tube arrives with the correct length, bend, and bore to seat precisely on this furnace's fittings. Generic bulk tubing lacks the pre-formed routing and can kink against cabinet walls, restricting drainage. For a clean, leak-free path, OEM is the reliable choice.
Easy (2/5). Disconnect power, remove the old hose from its barbed fittings, and press the new tube on in the same routing. Confirm the run has continuous downhill fall and no kinks, then flush the trap before restoring power.