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The Goodman 20171701 is a genuine OEM condensate drain trap built for the GKS91155DXAE high-efficiency gas furnace. In a 90%+ AFUE condensing furnace, combustion produces acidic condensate that must be safely captured and drained. This trap maintains the proper water seal that blocks flue gases from backing up through the drain line while allowing condensate to flow out freely. A cracked, clogged, or brittle trap is one of the most common causes of pressure-switch faults, water leaks around the furnace base, and no-heat lockouts.
The OEM 20171701 matches the exact port spacing, hose-barb sizing, and seal geometry of your furnace. Generic traps often require adapters that leak or fit poorly, defeating the flue-gas seal. Choosing OEM protects against callbacks and preserves your warranty.
Easy. Most homeowners can replace this trap in 20–40 minutes. Disconnect the drain hoses, remove the old trap, prime the new trap with water to establish the seal, and reconnect. Shut off power and gas before servicing and clear any blockage in the drain line while you're in there.
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