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The Goodman 20171701 is a genuine OEM condensate drain trap built for the GMH950453BXAF 96% AFUE two-stage gas furnace and compatible Goodman/Amana high-efficiency models. In a condensing furnace, this trap collects and drains acidic condensate from the secondary heat exchanger while maintaining a water seal that blocks flue gases from escaping into the cabinet — essential for safe, efficient operation.
The OEM 20171701 matches the exact port layout, height, and seal geometry of this furnace for a clean, leak-free fit and correct drainage. Generic universal traps are cheaper but often require adapters and careful routing to seal properly. For guaranteed fit and flue-gas safety, OEM is recommended.
Moderate (2/5) — Power down, disconnect the drain hoses, unclip or unscrew the old trap, and install the new one — priming it with water to establish the seal. Check for leaks on startup. Typical time: 20–30 minutes.
Fits Goodman GMH950453BXAF. Confirm part number and orientation before ordering.