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The Goodman 20201902 23-inch condensate drain hose tube is a genuine OEM replacement for the ACV90704CXBA high-efficiency gas furnace. Cut to a precise 23-inch length, this tube spans the longer run between the furnace's condensate components and the drain trap or termination point. Using the correct factory length keeps the hose properly pitched for gravity drainage and prevents the sags that trap water and cause pressure-switch faults.
The OEM Goodman tube arrives at the exact 23-inch length and bend profile the furnace needs, so it runs cleanly without low spots. Generic bulk hose must be measured and cut by hand — too short and it pulls off the fittings, too long and it sags and pools condensate. The factory part removes the guesswork.
Very Easy (Beginner). Power down the furnace, slide off the old 23-inch hose, route the new 20201902 along the same path, press it fully onto both fittings, and confirm a continuous downward slope. About 5–10 minutes, no tools needed.