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The Goodman 10254303 Rubber Coupling is a genuine OEM sealing component engineered for the Goodman GCH90905DXAB gas furnace and compatible models. This flexible rubber coupling creates a leak-tight connection between condensate drain and vent components, absorbing vibration and thermal movement so joints stay sealed over the life of the unit.
This is a factory OEM Goodman part built to exact dimensional and durometer tolerances, guaranteeing a drip-free fit. Aftermarket generic couplings are lower cost but often vary in inner diameter and rubber hardness, which can lead to slow leaks and premature cracking. For a sealing component, OEM is the safer long-term choice.
Easy (1/5). Slip-fit replacement secured with hose clamps — typically a 10-minute job with basic hand tools. Always shut off power and gas before servicing your furnace.