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The Goodman 20201901 is a genuine OEM condensate drain hose/tube shaped as a direct-fit replacement for the GCH950703BXAA 96% AFUE gas furnace. This molded drain line carries corrosive condensate from the secondary heat exchanger and collector box to the drain trap and outlet. Because condensate is mildly acidic, factory hoses eventually harden and crack; replacing them keeps the drain system sealed and flowing freely, preventing pressure-switch lockouts and cabinet leaks.
This OEM hose is pre-formed to the exact bends, length, and fitting sizes of the GCH95 drain path. Generic tubing lacks the molded shape, so it can kink at tight turns or pop off under condensate pressure. The 20201901 seats on the original barbs and follows the factory routing with no trimming or adapters required.
Plan on 10–20 minutes. Shut off power to the furnace first. Release the hose clamps, remove the aged hose, and press the replacement fully onto each fitting in the same orientation. Verify there are no kinks, re-clamp, and prime the trap. This is a low-cost repair that frequently restores reliable heating when a hardened or split hose has caused drainage problems.
Genuine Goodman OEM part for a dependable drain system.