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The Goodman 20201901 is a genuine OEM condensate drain hose tube built for the WFD195070S4CAB high-efficiency gas furnace. This preformed drain line channels condensate through the furnace's drainage circuit, connecting the collector box, trap, and outlet to keep water flowing away from the burners and inducer. Aging hoses harden, split, or clog and are a frequent culprit behind water leaks and pressure-switch lockouts — replacing with the factory tube restores proper drainage and dependable heating.
OEM (20201901): Molded bends and exact length route condensate correctly with no kinks or strain on fittings.
Generic Equivalent: Straight universal tubing is cheaper but may not match preformed bends, requiring careful routing.
Difficulty: Easy. Slip-on replacement onto existing drain ports, typically 15–20 minutes. Turn off power, note the routing of the old hose, and reconnect the new tube to the same points.