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The Goodman 20201902 23-Inch Condensate Drain Tube is a genuine OEM replacement drain line pre-cut to length for GMH950703BXAG and related GMH95 95% AFUE condensing furnaces. The pre-measured 23" run is designed to reach from the collector box/heat-exchanger outlet to the drain trap without kinking, which is the most common cause of condensate backup and inducer pressure faults on high-efficiency furnaces.
A generic length of tubing forces you to measure, cut, and hope for the right diameter. This genuine Goodman 23-inch tube arrives at the exact factory length with the correct inside diameter for a snug, drip-free connection — no trimming, no leaks, no warranty concerns. The correct bend radius prevents the sagging and pooling that shorten the life of substitute tubing.
Easy (1/5). A straightforward 10–15 minute swap for most homeowners. Power down the furnace, slide off the old tube, seat the new one fully on both fittings, and confirm a smooth downhill run to the trap.
Pair with drain trap 20201901 if you are refreshing the full condensate path.