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The Goodman 20201802 is a genuine OEM condensate drain hose tube engineered for the WGFM195070S3BAD modulating 95% AFUE gas furnace. It routes condensate away from the secondary heat exchanger and drain trap, keeping the drainage path sealed and leak-free during high-efficiency operation.
Aftermarket drain hoses are often cut to generic lengths and use softer tubing that kinks or collapses over time, causing condensate backup and lockout faults. This OEM 20201802 is molded to the exact bend radius and length Goodman specifies, so it seats correctly at both the collector box and trap without modification.
Easy (1/5). A basic no-tool or single-clamp swap. Power down the furnace, disconnect the old hose at each fitting, route the new tube along the original path, and secure the clamps. Confirm the trap is primed before restarting.
Ships as a direct-fit replacement. If you are unsure of compatibility, verify the number on your existing part against 20201802 before ordering.