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The Goodman 20201901 is a genuine OEM condensate drain hose tube built for the AMH950704CXAB high-efficiency gas furnace. This heavier drain assembly carries condensate from the secondary heat exchanger and collector box to the drain trap. Because it sits in the moisture path of a condensing furnace, a degraded tube can cause water leaks, collector-box backup, and pressure-switch lockouts — all resolved by installing the correct OEM component.
The OEM 20201901 is formed to factory length and geometry so it aligns with the trap and collector-box ports without modification. Generic tubing frequently needs cutting to fit and is prone to collapsing or hardening over time. Choosing genuine OEM avoids repeat drainage faults and keeps your warranty intact.
Easy (1 of 5). Homeowner-friendly — cut power, remove the old tube from its fittings, install the replacement, and re-clamp. About 15 minutes with basic hand tools.