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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube engineered for the AMH950704CXAA gas furnace. This flexible drain line routes condensate away from the secondary heat exchanger and collector box to the drain trap, keeping your high-efficiency furnace clear of moisture buildup that can trigger pressure-switch lockouts and nuisance shutdowns.
The genuine OEM 20201902 is cut to the exact factory length and tubing diameter, so it seats on the collector box and trap fittings without kinking or gapping. Generic aftermarket hose can be trimmed to fit but often uses a softer wall that collapses over time or a diameter that leaks at the barbs — costing you callbacks. For a leak-free, drop-in replacement we recommend the OEM part.
Easy (1/5). Slip the old hose off the barbed fittings, route the new tube along the same path, and seat both ends. No tools or brazing required — most technicians and handy homeowners complete this in under 10 minutes. Always shut off power and gas before servicing.