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The Goodman 20201802 Drain Hose Tube is a factory OEM condensate line for the WGFM195070S3BAC high-efficiency gas furnace and compatible Goodman/Amana condensing models. This pre-formed tube carries acidic condensate between the collector box, drain trap, and outlet along the exact routing the furnace cabinet was designed for.
Original drain hoses harden, kink, or split with age and constant exposure to corrosive condensate, leading to leaks, water pooling, and pressure-switch trips. A correctly molded OEM hose restores clean drainage and eliminates the kinks that cause backups.
Our genuine OEM Goodman hose is pre-bent to the factory length and radius, so it seats on the collector and trap ports without kinking. Generic bulk tubing must be cut and shaped by hand and often collapses at tight bends, restricting flow. For a trouble-free drain path, the molded OEM tube is worth the small difference.
Easy (1/5). A 5–10 minute swap. Power down the furnace, slide the old hose off its barbed fittings, and press the new tube on in the same orientation. Confirm a clear, downhill drainage path and check for leaks after restart.