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The Goodman 20171701 is the OEM condensate drain trap engineered for the WGFM295115V5DAB modulating high-efficiency gas furnace. In a 95%+ AFUE condensing furnace, combustion produces acidic condensate that must be captured and routed away safely. This factory drain trap forms the water seal that prevents flue gases from escaping through the drain line while allowing condensate to flow to the drain, protecting the heat exchanger and inducer from moisture backup and nuisance pressure-switch lockouts.
Our genuine Goodman trap matches the exact port geometry, seal height, and mounting of the original assembly, so it seats correctly the first time. Universal aftermarket traps frequently mismatch the inlet/outlet angles on modulating furnaces, causing slow drainage, gurgling, and repeat pressure-switch faults. For a sealed-combustion appliance, the OEM part is the safe, reliable choice.
Easy (2/5). A typical drain-trap swap takes 15–30 minutes: power down the furnace, disconnect the drain hoses, remove and replace the trap, prime it with water, and confirm free drainage. No specialized tools required. If you are unsure about combustion venting, consult a licensed HVAC technician.