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The genuine OEM Goodman 10254303 Rubber Coupling is a flexible sealing connector used on the Goodman ACSH961155DXAA gas furnace and related high-efficiency models. Rubber couplings join condensate drain lines, trap assemblies, or inducer/vent components, creating a leak-tight, vibration-dampening seal between two fittings. Over time the original rubber can harden, crack, or weep — this OEM replacement restores a clean, watertight connection.
The OEM 10254303 is molded to the exact inside diameter and wall thickness for a proper, slip-free fit on this furnace's fittings. Generic couplings in the wrong size can leak condensate, leading to water damage, rust, or pressure-switch faults from a flooded trap. For a reliable seal, genuine OEM is the right call.
Very Easy (1/5). No tools required in most cases — loosen any clamps, slide off the old coupling, push the new one fully onto both fittings, and re-secure the clamps. Run the furnace and check for leaks. Confirm your furnace model before ordering.