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The Goodman 20201902 23-Inch Drain Hose Tube is a genuine OEM condensate line cut to the exact 23" length specified for the GMV950453BXBA high-efficiency gas furnace and related Goodman/Amana condensing models. Correct length matters: too short strains the connections, too long allows sagging and trapped water.
Use this tube to replace cracked, brittle, or algae-clogged drain hose and restore a clean condensate path from the furnace to the drain trap.
OEM (recommended): Pre-cut to 23" with the correct inner diameter — drop-in fit with no measuring or trimming. Generic: Bulk tubing must be measured and cut on site and may not match the barb diameter, risking leaks.
Easy (1 of 5). No special tools. Power down, remove the old 23" run, seat the replacement, and confirm a snug, downhill-draining connection. About 15 minutes.
Shut off gas and electrical power before servicing. Professional installation recommended if you are unsure.