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The Goodman 20201802 Drain Hose Tube is a genuine OEM condensate hose built for the Goodman GKS90904CXAE gas furnace. It carries acidic condensate from the collector box and drain trap to the drain line, resisting the heat and corrosion of high-efficiency furnace operation. A kinked, brittle, or split hose causes drips, water pooling, and pressure-switch lockouts — this OEM tube restores clean, reliable condensate flow.
The OEM Goodman drain hose is cut to the correct length and inner diameter for a snug, leak-free fit on this furnace's barbed fittings. Generic tubing can be the wrong size or a lower temperature rating, leading to slips and leaks. For a trouble-free condensate path, OEM is the reliable choice.
Easy (1/5) — Power off, pull the old hose off its barbed fittings, and push the new hose fully onto each connection. No tools required. Typical time: under 10 minutes.