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The Goodman 10254303 is a genuine OEM rubber coupling used to create a flexible, leak-free seal between drain, condensate, or inducer components on the GMH950703BXAC high-efficiency gas furnace and related Goodman/Amana condensing models. Because 90%+ AFUE furnaces produce acidic condensate, a properly sealed coupling is essential to prevent water leaks, drain trap failures, and corrosion inside the burner and control area.
The OEM Goodman coupling is molded to exact factory inner/outer diameters so it seats fully and clamps without leaks. Generic couplings often vary slightly in size or durometer, leading to slow drips that can trip pressure switches or damage the control board over time. At this price point, OEM is the safe, low-risk choice.
Very Easy (1 of 5) — Slip the coupling over the fittings and secure with the existing spring or worm-gear clamps. No tools beyond a nut driver required. Inspect for cracks or hardening whenever servicing the condensate system.