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The Goodman 20201802 is a genuine OEM condensate drain hose engineered for the AMV91155DXAB modulating gas furnace and compatible Goodman/Amana high-efficiency models. This flexible tube carries acidic condensate between the collector box, pressure switch ports, and drain trap. Over time, factory hoses can harden, crack, or clog with sediment and biofilm — leading to water leaks, trap failures, and pressure-switch lockouts. Replacing worn hoses during service restores reliable condensate flow.
The genuine OEM 20201802 is pre-cut to the correct length with the exact inside diameter needed for a leak-free press fit on your furnace's barbed ports. Generic bulk tubing often requires trimming and can slip off or kink, causing intermittent drain problems that are difficult to diagnose.
Rating: Very Easy (1/5). A 5–10 minute job. Power down the furnace, pull the old hose off its ports, and press the new hose fully onto each fitting. Confirm there are no kinks and that condensate drains freely before restoring power.
Genuine OEM replacement, backed by fast shipping from National HVAC Parts.