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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose built for the GMH950453BXAD 95% AFUE condensing gas furnace. This length is used to carry acidic condensate from the collector box or trap assembly to the drain, keeping the furnace's secondary heat exchanger clear and its pressure-switch circuit operating correctly.
The OEM 20201902 arrives pre-cut to the correct 23-inch length with the right inner diameter for a snug, leak-free fit on your furnace's barbed fittings. Generic tubing must be measured and cut, risking kinks and slow leaks. Choose OEM for a guaranteed drop-in replacement.
Watch for water pooling beneath the furnace, condensate odor, or intermittent pressure-switch lockouts — all signs of a cracked, kinked, or clogged drain hose that should be replaced.
Rating: Easy (1/5). Under 10 minutes: loosen the clamps, pull the old hose, and slide the new 23" tube onto the fittings. Minimal tools needed.