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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube engineered as a direct-fit replacement for the WGFM195090S5DAC gas furnace and other compatible Goodman/Amana high-efficiency models. This flexible drain tube routes condensate away from the secondary heat exchanger and collector box, keeping your furnace draining cleanly and preventing water backup, nuisance lockouts, and pressure-switch faults.
Unlike generic bulk tubing cut to approximate lengths, this OEM Goodman drain hose is molded to the exact diameter and routing needed for a leak-free seal at the collector box and drain trap. Aftermarket hose can kink, slip off barbed fittings, or restrict flow — leading to callbacks and water damage. The genuine part guarantees factory fit and long-term reliability.
Easy (1/5). Slip the hose onto the existing barbed fittings, secure the clamps, and confirm a downhill slope to the drain. No special tools required. Always shut off power and gas before servicing.