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The Goodman 20201802 is a factory-original condensate drain hose that routes water between the collector box, drain trap, and pressure switch on the WGFM295090V5DAB high-efficiency gas furnace. Condensing furnaces produce acidic condensate, and these pre-formed tubes are cut and bent to length so they route without kinks or sags that would trap water and trigger pressure-switch faults. Replace brittle, cracked, or clogged hoses to restore reliable drainage.
Our OEM Goodman hose comes pre-cut to the exact length and bend radius for this furnace, so it seats on the factory barbs and clears the cabinet without modification. Generic bulk tubing must be measured, cut, and coaxed into position and can crimp at tight bends. OEM is the fast, leak-free choice.
Rating: Easy (1/5). Power down, pull the old hose off its barbed fittings, push the new one on, and secure any clip. Under 10 minutes with no tools. Confirm the run drains downhill with no low spots.