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The Goodman 20201901 is a factory condensate drain hose tube for the GMH950704CXAF 96% AFUE two-stage gas furnace. This molded hose routes acidic condensate between the secondary heat exchanger, collector box, drain trap, and pressure-switch ports. Over years of exposure to heat and corrosive condensate, factory hoses harden, crack, or clog with scale — leading to water leaks, drain faults, and pressure-switch lockouts. Replacing the hose restores a clean, sealed condensate path.
This genuine Goodman hose is pre-molded to the exact length and bend radius of your furnace's condensate layout, so it seats on the barbs without kinking or trapping water. Generic bulk tubing must be cut and routed by hand and often kinks at tight bends, causing backups. For a leak-free, drain-fault-free repair, choose the OEM part.
Easy (1/5). Power down the furnace, note the routing of the original hose, slip the old hose off its barbs, and press the new 20201901 onto the same fittings. Confirm there are no kinks and that condensate drains freely. About 15 minutes with no special tools.
Direct-fit OEM quality with fast shipping from National HVAC Parts.