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The Goodman 20171701 is a genuine OEM condensate drain trap engineered for the GME950403BXAA and other high-efficiency Goodman/Amana condensing gas furnaces. In a 90%+ AFUE furnace, combustion produces acidic condensate that must drain safely away; the drain trap maintains a water seal that lets condensate flow out while blocking flue gases from backing up into the cabinet. A cracked, clogged, or brittle trap leads to water leaks, pressure-switch faults, and nuisance lockouts.
The OEM Goodman trap matches the exact port spacing, height, and outlet orientation of your furnace, so tubing lines up without kinks or adapters. Generic traps often require modifying the drain routing and are prone to leaks at mismatched fittings.
Easy (2/5). Snaps or clips into the factory location; disconnect the inlet and outlet hoses, swap the trap, and reconnect. Prime the trap with water before restarting. Power the furnace off first.