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The Goodman 20201901 is an OEM condensate drain hose (tube) sized for the GMH950905DXAD high-efficiency furnace and compatible Goodman/Amana models. It carries acidic condensate between the collector box, drain trap, and pressure-switch ports. Over time these hoses harden, crack, or clog with debris and biofilm, which leads to water leaks, tripped pressure switches, and furnace lockouts. This factory-spec replacement uses the correct inside diameter and material so it seats securely and drains freely.
Genuine OEM Goodman hose matches the exact diameter, wall thickness, and pre-formed length for your furnace's drain routing. Generic tubing may be the wrong bore, kink at bends, or fit loosely on the barbs and leak. For dependable condensate flow and a proper seal, choose OEM.
Rated Easy. Slip the old hose off the collector box and trap barbs, route the new hose the same way, and confirm a snug fit with no kinks. Run the furnace and verify leak-free drainage. Suitable for a handy owner or HVAC technician with power and gas off.