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The Goodman 10254303 Rubber Coupling is a genuine OEM part engineered for the GKS90703BXAD gas furnace and compatible Goodman 90%+ AFUE models. This flexible coupling forms a leak-tight, vibration-dampening connection in the condensate and drain assembly, keeping moisture routed away from the heat exchanger and control components.
This is the factory OEM coupling — molded to exact Goodman tolerances so it seats fully without weeping. Generic rubber couplings may be close in size but often use lower-grade compounds that harden and crack under repeated heat cycles, leading to nuisance drain leaks and lockout faults. For a furnace you rely on every winter, OEM is the safe choice.
Easy (1/5). Slip-fit connection secured with hose clamps — typically a 5–10 minute job with a nut driver. Always shut off power and gas before servicing.
Compatible with Goodman GKS90703BXAD. Confirm your model and part number before ordering.