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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube designed for the WFD195070S4CAB high-efficiency gas furnace. This length-specific drain line carries condensate through the furnace's drainage circuit — linking the collector box, trap, and outlet — to move water safely away from the heat exchanger and inducer. Brittle, kinked, or clogged hoses cause leaks and pressure-switch faults, so this affordable factory replacement is an easy way to keep the condensate system flowing freely.
OEM (20201902): Pre-cut to the correct 23-inch length and diameter for a proper, strain-free fit right out of the package.
Generic Equivalent: Bulk universal tubing is a low-cost option but must be measured and cut to 23 inches to match.
Difficulty: Easy. Direct slip-on replacement, typically 10–15 minutes. Shut off power, remove the old 23-inch hose, and connect the new tube to the same ports. A beginner-friendly repair.