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The Goodman 10254303 Rubber Coupling is a genuine OEM sealing component used on the AMH951155DXAG 95% AFUE condensing furnace and related Goodman/Amana high-efficiency models. This flexible coupling joins condensate drain and induced-draft plumbing connections, providing a leak-tight, vibration-absorbing seal between rigid PVC and internal furnace fittings. A cracked or hardened coupling is a common cause of condensate leaks, pressure-switch faults, and lockout codes on condensing furnaces.
OEM vs. Generic: The 10254303 is molded to the precise inside diameter and wall thickness required for a positive seal at the factory connection points. Generic couplings and hardware-store hose sections often fit loosely, leading to slow leaks that corrode the burner assembly over time. OEM ensures a drip-free fit the first time.
Install difficulty: Very easy — under 15 minutes. Slip the coupling over the fittings and secure with the existing clamps. No tools beyond a nut driver for the hose clamps. Verify the drain flows freely and is leak-free before restoring power.