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The Goodman 20201901 is a genuine OEM condensate drain hose tube engineered to route condensate away from the heat exchanger and secondary coil on GCH90905DXAB high-efficiency gas furnaces. When condensate drainage is blocked, kinked, or cracked, the furnace pressure switch can trip and lock out the burner — replacing a worn drain hose restores reliable operation and prevents water damage around the unit.
This is a factory OEM Goodman component built to exact tolerances for a leak-free press fit. Generic aftermarket hoses may vary in diameter and wall thickness, leading to loose connections, drips, or pressure-switch nuisance trips. For furnace drainage integrity, OEM is the safe choice.
Easy (1 of 5). Power down the furnace, disconnect the old hose from the drain trap and coil fitting, seat the new tube, and secure the clamps. No special tools required. If you're unsure about your furnace's condensate routing, consult a licensed HVAC technician.