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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube engineered for the WGFD295090V5DAA 95% AFUE high-efficiency gas furnace. In a condensing furnace, the secondary heat exchanger produces acidic condensate that must be routed away reliably — this molded drain tube carries that moisture from the collector box to the drain trap without kinking or restricting flow. A cracked, brittle, or clogged drain line is one of the most common causes of nuisance lockouts and water damage around the furnace cabinet.
The genuine Goodman 20201902 is pre-cut and pre-formed to the exact routing of your furnace, ensuring a leak-free connection at both the collector box and trap. Universal tubing can work but often requires trimming, adapters, and delivers an imperfect seal that invites drips.
Most homeowners can replace this drain tube in 10–15 minutes with basic hand tools. Always shut off power and gas to the furnace before servicing.