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The Goodman 20201802 Drain Hose Tube is a genuine OEM condensate hose engineered for the Goodman WFD195090S5DAB high-efficiency furnace. It carries acidic condensate between the secondary heat exchanger, drain trap, and outlet. Over time the original hose can harden, crack, kink, or clog with biofilm — causing leaks, blocked drainage, and pressure-switch lockouts. This factory-matched hose restores clean, reliable condensate flow.
OEM vs. Generic: Condensate hose length, inner diameter, and bend radius are matched to the furnace's port spacing. Genuine OEM 20201802 tubing fits the factory routing without kinking and resists acidic condensate degradation. Generic vinyl tubing of the wrong ID or wall thickness can collapse or crack prematurely. OEM ensures a clean, long-lasting connection.
Install Difficulty: Easy (1/5). Pull the old hose off its barbed fittings, route the new hose the same way, and press it firmly onto each port. A simple 10-minute replacement with no special tools.