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The Goodman 10254303 Rubber Coupling is a genuine OEM sealing coupling for the GCH90904CXAA gas furnace and compatible Goodman/Amana models. This flexible rubber connector joins condensate drain, inducer, or trap components with an airtight, watertight seal, absorbing minor vibration and thermal movement. A cracked or hardened coupling is a common source of condensate leaks and pressure-switch faults on high-efficiency furnaces.
The OEM 10254303 is molded to the exact inside diameter and durometer needed for a slip-fit seal on your furnace's ports. Generic couplings often size loosely, weep condensate, or harden prematurely from heat exposure. OEM rubber holds its seal and flexibility across years of heating cycles.
Easy (1 of 5). Power down the furnace, loosen the hose clamps, slide off the old coupling, and press the new one into place. Re-tighten the clamps evenly and confirm no condensate leaks during the next heat cycle. Typical job time is under 10 minutes.
Genuine Goodman part backed by our fit guarantee. Unsure of the connection point? Contact info@nationalhvacparts.com with your model and serial number.