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The Goodman 20201802 is a genuine OEM condensate drain hose designed for the WGFD293090V5DAB high-efficiency gas furnace and compatible Goodman/Amana models. This pre-formed flexible tube carries acidic condensate from the drain trap, inducer, or collector box to the drain line. Because the routing is molded to the furnace cabinet, it resists kinking and keeps condensate flowing freely — preventing backups that trip the pressure switch or leak onto the floor.
The OEM 20201802 is molded to the exact length and bend radius of the Goodman cabinet, so it connects without kinks or strain on the barbs. Generic bulk hose can collapse at tight bends and slip off unsupported fittings, causing slow condensate leaks. OEM ensures a clean, reliable path for reliable drainage.
Slip the old hose off the barb fittings and press the replacement onto both ends, matching the original routing. Confirm a snug fit, then run a heat cycle and check for leaks at each connection.