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The Goodman 10254303 Rubber Coupling is a genuine OEM condensate-drain sealing coupling engineered for the Goodman GMH950905CXAC 95% AFUE two-stage gas furnace. This flexible rubber coupling joins condensate drain tubing to the collector box or drain trap, forming a leak-tight seal that prevents nuisance condensate leaks and pressure-switch faults common in high-efficiency furnaces.
The OEM Goodman 10254303 is molded to exact factory dimensions for a guaranteed slip-and-seal fit, with rubber compounded to survive years of acidic condensate exposure. Universal generic couplings are cheaper but often size-mismatched, leading to slow leaks and repeat service calls. For a $9 part, OEM is the smart insurance.
Easy — DIY friendly (1/5). No tools beyond a nut driver for the hose clamp. Cut furnace power, slide off the old coupling, seat the new one, and re-clamp. Under 10 minutes.
Always confirm your model number before ordering. Fits Goodman and Amana high-efficiency furnaces using the same condensate assembly.