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The Goodman 20201901 Condensate Drain Hose Tube is a genuine OEM replacement part designed for the Goodman ACVC90905DXAA high-efficiency condensing gas furnace. This flexible drain tube routes acidic condensate away from the secondary heat exchanger and collector box, keeping the drainage path clear and preventing nuisance pressure-switch lockouts caused by a clogged or cracked line.
This is a factory-original Goodman component built to the exact length, diameter, and durometer the furnace was engineered around. Generic aftermarket tubing is often the wrong inner diameter or wall thickness, which can kink, leak at the barbed fittings, or degrade prematurely against corrosive condensate. Choosing the OEM 20201901 guarantees a leak-free, drop-in fit with no trimming or adapters.
Easy (DIY-friendly). Replacement typically takes 10–15 minutes with basic hand tools. Power down the furnace, disconnect the old tube from the collector box and drain trap, slide the new 20201901 onto the existing barbed fittings, and confirm a snug, leak-free seat. Always run the unit afterward and inspect for drips. If you are not comfortable working around the heat exchanger and condensate trap, consult a licensed HVAC technician.