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The Goodman 20201802 condensate drain hose tube is a genuine OEM replacement line for the ACVC950915DXBA 95% AFUE condensing gas furnace. This molded hose carries acidic condensate between the secondary heat exchanger, drain trap, and outlet. Over time these hoses harden, crack, kink, or develop algae blockages that trigger water leaks and pressure-switch faults — replacing the exact factory part restores proper drainage and slope.
The OEM 20201802 is pre-bent to the correct length and radius for its position in the furnace cabinet, so it routes cleanly without sagging or kinking. Cut-to-length generic tubing can work but risks improper slope and trap siphoning. For a guaranteed leak-free fit, use the factory part.
Very Easy (1/5). A 5–10 minute push-on swap. Power down the furnace, slide the old hose off its barbed fittings, press the new hose fully onto each port, and confirm a downhill slope to the trap. No tools required for most positions.