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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube designed for the GCV90704CXBA high-efficiency gas furnace and compatible GCV90-series units. This pre-cut length spans the longer run between the drain trap and the furnace's condensate outlet, delivering acidic condensate safely to the drain without kinks or sags that could pool water and cause a shutdown.
At exactly 23 inches with the correct bore, the OEM 20201902 eliminates the trial-and-error of cutting bulk hose to length. Generic tubing may be the wrong diameter and won't seal on Goodman barbs, risking leaks. The genuine part installs right the first time.
Very Easy (1/5). Roughly 10 minutes. Power down the furnace, pull the old hose off both fittings, and push the new 23-inch tube on, matching the original path. Ensure a continuous downward slope for gravity drainage. No tools required.