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The Goodman 20201802 is a genuine OEM condensate drain hose designed for the GMV90905CXBA two-stage, variable-speed 92% AFUE condensing gas furnace. This flexible high-temperature tube routes acidic condensate between the collector box, drain trap, and drain line. Over time, factory hoses can harden, crack, or clog with biofilm and scale, leading to leaks, water pooling, and pressure-switch faults. Installing the correct OEM hose restores a clean, sealed condensate path.
This OEM hose is pre-formed to the exact bend radius and length of the GMV90905CXBA drainage layout, so it seats cleanly without kinking. Generic bulk tubing must be cut and fitted and can kink at tight bends, restricting flow and causing overflow. For a leak-free factory fit, choose the OEM part.
Easy (1/5) — A quick 10-minute swap. Power off the furnace, slide off the old hose at both connection points, press the new hose fully onto the barbed fittings, and confirm a snug seal. No tools required.