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The Goodman 20201901 is a genuine OEM condensate drain hose tube for the WGFM195115S5DAD high-efficiency gas furnace and compatible Goodman/Amana condensing units. This pre-formed tube carries acidic condensate from the secondary heat exchanger and collector box to the drain trap. Because it is molded to a specific length and bend, it seats without kinking in the furnace's tight condensate path — preventing the slow-drain faults and pressure-switch lockouts that come from aged, brittle tubing.
The OEM 20201901 arrives shaped to the exact run Goodman engineered, so it clears internal components and holds its bend. Universal tubing requires trimming and frequently kinks at bends, restricting condensate flow and triggering nuisance codes. OEM ensures correct routing and a reliable seal.
Very Easy (1/5). Slip-on connection with hose clamps, roughly 10–15 minutes. Always disconnect power and gas before servicing.