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The Goodman 10254303 Rubber Coupling is a flexible connector used on the GME951005DXAB high-efficiency gas furnace. On 95%+ AFUE condensing furnaces, rubber couplings join drain, condensate, and inducer hose sections while absorbing vibration and allowing slight misalignment. This genuine coupling delivers a watertight, airtight seal that resists the acidic condensate and heat found inside a condensing furnace.
Inner diameter and wall thickness must match the furnace's tubing to seal properly. The genuine Goodman 10254303 is molded to the exact dimensions of the GME951005DX plumbing, unlike generic rubber that may slip, leak, or degrade prematurely under acidic condensate.
Easy (1/5). Loosen the hose clamps, slide off the old coupling, fit the new one, and re-clamp. Follow safe furnace service practice.