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The Goodman 20201902 is a genuine OEM 23-inch condensate drain hose tube built for the GMH950453BXAF 96% AFUE gas furnace and related Goodman/Amana condensing models. This longer run of drain tubing carries condensate from the collector box and pressure-switch port to the drain trap. Because it is cut to a precise 23-inch length, it drops into the factory routing without splicing, extra couplers, or trimming — eliminating the low spots and kinks that cause water backups and pressure-switch faults.
Unlike generic bulk tubing you cut yourself, this OEM Goodman hose arrives at the exact factory length with the correct bore for a clean push-fit at both ends. Guessing the length with generic tubing risks strain on the fittings or sagging loops that trap condensate — a leading cause of intermittent no-heat calls.
Easy — DIY friendly (1 of 5). Roughly a 10-minute job. Kill power to the furnace, pull the old hose off its barbed fittings, empty any trapped water, then press the new 23-inch tube onto both ports. Route it downhill to the trap with no dips, and confirm free drainage before powering back up.