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The Goodman 20201902 23-Inch Drain Hose Tube is a genuine OEM condensate drain hose sized specifically for the Goodman GCH90704CXAA gas furnace and related models. Its 23-inch length is factory-cut to reach from the furnace's condensate trap to the drain connection without excess slack or tight bends, keeping condensate flowing freely on high-efficiency furnaces where drainage problems trigger pressure-switch faults.
The OEM 20201902 arrives at the correct 23-inch length with the proper inside diameter for a leak-free slip fit. Generic hose sold by the foot must be measured, cut, and clamped — introducing potential for kinks, wrong sizing, and leaks. For a clean, reliable condensate path, the pre-cut OEM hose saves time and avoids callbacks.
Easy (1/5). Power down the furnace, slip the old hose off the trap and drain fittings, and press the new 23-inch 20201902 onto each barb. Route it with a continuous downward slope, avoid kinks, and secure any clamps. Prime the trap and test a heat cycle for leaks.
Genuine Goodman replacement part. Verify model compatibility before ordering.