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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube built for the GMH950905CXAA high-efficiency gas furnace and compatible Goodman/Amana condensing models. The pre-cut 23" length is engineered to reach from the furnace's collector box or drain trap to the field drain connection without splicing. Because condensing furnaces produce acidic condensate, this OEM tube is made from chemical-resistant material to prevent premature failure and leaks.
The OEM 20201902 arrives at the exact factory length and diameter, so it fits the barb connections cleanly and routes without kinks. Generic tubing must be cut to length and may not resist acidic condensate as well, increasing the risk of leaks and drain faults.
Easy (DIY-friendly). Remove the old hose from its fittings and push the new 23" tube into place — no tools required. Always disconnect power and gas before servicing, and verify the drain path slopes downhill.