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The Goodman 10254303 Rubber Coupling is a genuine OEM flexible connector used in the GKS90904CXAD high-efficiency gas furnace. This coupling joins condensate drain or inducer/trap tubing, providing a vibration-absorbing, leak-tight seal between components. On 90%+ condensing furnaces, a cracked or hardened coupling leads to water leaks, trap faults, and pressure-switch lockouts, so a fresh OEM seal keeps the drainage system reliable.
The OEM Goodman coupling is molded to the exact inside diameter and durometer your furnace's tubing requires, ensuring a slip-free, leak-free joint. Hardware-store rubber couplings often have the wrong ID or wall thickness and weep under thermal cycling. OEM guarantees the correct fit.
Very Easy (1/5). Slide the old coupling off, clean the tube ends, and press the new coupling into place. No tools required in most applications. Inspect for leaks after the first heating cycle.
An inexpensive, high-value maintenance part. Contact info@nationalhvacparts.com for compatibility help.