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The Goodman 20201901 is a genuine OEM condensate drain hose designed for the AMV91155DXAB modulating gas furnace and compatible Goodman/Amana high-efficiency models. This molded hose routes acidic condensate through the furnace's drainage system, linking the collector box, drain trap, and outlet. Because it is shaped to clear internal components, it is not easily substituted with straight bulk tubing. Replacing a cracked or brittle hose eliminates a common source of cabinet water leaks and nuisance lockouts.
The genuine OEM 20201901 arrives with the correct pre-formed bends and connector sizing for a secure, leak-free fit. Generic tubing lacks the molded routing and can kink against nearby components, restricting flow and triggering hard-to-trace drain faults.
Rating: Very Easy (1/5). Typically 10 minutes. Turn off power, remove the old hose from its ports, route the replacement along the same path, and press it firmly onto each fitting. Verify free drainage and no kinks before returning the furnace to service.
Genuine OEM replacement, backed by fast shipping from National HVAC Parts.