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The Goodman 20201802 is a genuine OEM condensate drain hose tube engineered for the Goodman/Amana AMVM960603BXBA modulating, variable-speed 96% AFUE gas furnace. As a high-efficiency condensing furnace, this unit produces acidic condensate during normal operation, and this hose routes that moisture safely away from the heat exchanger and collector box to the drain. A cracked, brittle, or clogged drain tube is a leading cause of pressure-switch faults and water leaks, so replacing it with the correct factory part keeps your furnace running reliably.
Generic aftermarket tubing is often cut to the wrong length or made from material that hardens and cracks when exposed to warm, acidic condensate. This genuine OEM 20201802 is molded to the exact bend radius and length the AMVM960603BXBA requires, so it seats correctly on the barbed fittings without kinking or leaking — no trimming or guesswork.
Most homeowners and technicians can swap this hose in 10–15 minutes with basic hand tools. Power down the furnace, release the retaining clip or clamp, pull the old hose off both fittings, press the new hose fully onto each barb, and re-secure. Always confirm free drainage before restoring power.