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The Goodman 20201902 is the factory 23-inch condensate drain hose tube for the GMH950704CXAF 96% AFUE two-stage gas furnace. This length carries acidic condensate from the collector box or drain trap out to the drain line. Hardened, cracked, or scaled hoses are a leading cause of water pooling at the furnace base and intermittent pressure-switch drain faults. This pre-cut OEM replacement restores a clean, correctly routed condensate path.
Cut to the exact 23-inch factory length, the genuine Goodman 20201902 seats on the original barbs and follows the intended slope for gravity drainage. Generic tubing cut by hand can end up too short, too long, or kinked — trapping water and triggering faults. The OEM part removes the guesswork.
Easy (1/5). Turn off furnace power, slide the old hose off its fittings, and press the new 23" hose onto the same barbs, keeping the run sloped downward and free of kinks. Confirm free drainage. A 10–15 minute job requiring no special tools.
Budget-friendly OEM replacement with fast shipping from National HVAC Parts.