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The Goodman 10254303 Rubber Coupling is a genuine OEM connector for the Goodman GCH950453BXAA gas furnace. This flexible rubber sleeve joins tubing or duct sections — commonly at the inducer, pressure switch hose, or condensate drain path — providing an air-tight, vibration-damping connection. Cracked or hardened couplings cause pressure switch faults, whistling air leaks, and rattling noise during operation.
The OEM coupling is molded to the exact inside diameter and durometer your furnace needs for a leak-free press fit. Generic hose or auto-parts couplings often have the wrong bore or wall stiffness, leading to slow leaks that trip the pressure switch. The genuine Goodman part seats correctly and holds pressure.
Easy (1/5) — Slide off the old coupling, push the new one onto both fittings, and secure any clamps. No tools or electrical work in most cases. Under 10 minutes.