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The Goodman 20201901 Drain Hose Tube is a genuine OEM condensate line built for the GMV950905DXBB 96% AFUE two-stage variable-speed gas furnace. In a high-efficiency condensing furnace, several ounces of acidic condensate are produced every cycle; this molded tube carries that flow from the collector box to the drain trap so the secondary heat exchanger stays clear and the pressure switches read correctly.
The OEM 20201901 is pre-formed with the correct bends and end diameters, so it drops into the factory routing without re-clamping or trimming. Generic bulk hose must be measured, cut, and coaxed into position, and the wrong internal diameter is a common cause of slow drainage and overflow switch trips. Choose OEM for guaranteed geometry and fit.
Roughly 15–20 minutes for a homeowner. Cut power, note the routing of the old tube, release the clamps, and remove it. Seat the replacement fully onto each barb, re-secure the clamps, and pour water through the drain path to confirm it flows freely to the trap before restoring power.