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The Goodman 20201802 is a genuine OEM condensate drain hose tube engineered for the AMVC950905DXBA and compatible Goodman/Amana modulating variable-speed gas furnaces. During high-efficiency (95% AFUE) operation, these furnaces produce combustion condensate that must be routed safely to the drain system. This hose carries that acidic condensate away from the secondary heat exchanger and collector box, protecting internal components from corrosion and preventing water damage. Using the exact factory part guarantees correct length, diameter, and material compatibility.
The genuine OEM 20201802 is molded to the precise routing geometry of the furnace's drain train, so it seats cleanly without kinks or leaks. Aftermarket generic tubing is often cut-to-length and lacks the correct barb fit, which can cause slow leaks, nuisance lockouts from the pressure switch, or condensate overflow. For a condensing furnace, the OEM part is the safe choice.
Easy (1/5). Slip the hose onto the drain fitting, secure any clamps, and confirm a downhill run to the trap. Always shut off power and gas before servicing. If unsure, consult a licensed HVAC technician.