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The Goodman 20201802 is a genuine OEM condensate drain hose tube for the AMH950904CXAF high-efficiency furnace and compatible Goodman/Amana models. This molded hose routes acidic condensate between the drain trap, inducer, and outlet, and is pre-formed to the correct length and bend so it won't kink or trap water in the wrong spot.
The OEM 20201802 is molded to the exact length and diameter of your furnace's drain path. Generic tubing cut to length can sag, kink, or fit loosely on the barbs, causing leaks and pressure-switch faults. For a leak-free condensate path, the OEM hose is recommended.
Easy. Slide the old hose off its barbed fittings and press the replacement onto the same connections. Confirm a snug fit at both ends and run a heat cycle to check for leaks. A basic DIY task requiring no special tools.