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The Goodman 20201901 Condensate Drain Hose is a genuine OEM tube built for the WGFM295090V5CAA high-efficiency gas furnace and compatible Goodman/Amana condensing models. This hose channels acidic condensate from the furnace's collector and trap assembly to the drain, and its factory-specified length and diameter ensure a snug, leak-free routing through the cabinet.
OEM vs. Generic: Because condensate is acidic and the routing path is tight, hose fit matters. The 20201901 is molded and cut to Goodman's spec, so it seats fully on the barbed fittings and won't kink or pop off during thermal cycling. Generic tubing may have the wrong ID or wall thickness, leading to slow leaks that damage the heat exchanger and control board over time.
Install difficulty: Easy (1/5). Shut off power, remove the old hose from its fittings, and firmly press the replacement onto each barb, matching the original routing. Reuse existing clamps where fitted. Typical time is 10–15 minutes. Cycle the furnace and inspect all joints for drips before closing up.
Genuine Goodman quality, shipped fast from National HVAC Parts.