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The Goodman 10254303 Rubber Coupling is a genuine OEM flexible coupling for the Goodman GCV90704CXBB high-efficiency gas furnace. It joins condensate drain, trap, or inducer/vent connections and provides a leak-tight, vibration-absorbing seal between components. Over time rubber couplings dry out, crack, and weep — allowing condensate leaks that stain the cabinet, corrode metal, and can trigger a pressure-switch fault. Replacing a hardened coupling restores a clean, sealed drain path.
The factory Goodman coupling is molded to the exact inside diameter and durometer needed for a snug, no-leak fit on the GCV90704CXBB. Generic couplings and universal boots may be close but often need extra clamps or shimming to seal. At this price, the OEM part is the simple choice.
Very Easy (1 of 5). Loosen the hose clamps, slide off the old coupling, slip the new one on, and retighten. A 5-minute job with a nut driver or screwdriver.
Backed by our fit guarantee for the GCV90704CXBB. Questions? info@nationalhvacparts.com.