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The Goodman 10254303 Rubber Coupling is a genuine OEM flexible seal used on the GMV950453BXAB condensing gas furnace. It joins condensate drain and combustion-trap connections, providing a watertight, vibration-tolerant seal between components. Though small and inexpensive, a cracked or hardened coupling is a common source of water leaks, pressure-switch faults, and lockouts on high-efficiency furnaces — making this an easy, low-cost fix that prevents bigger problems.
Generic rubber couplings often have the wrong inner diameter or wall durometer, leading to slow seeps or blow-off under condensate pressure. This genuine Goodman coupling matches the exact port size and material spec, so it seats fully and holds a leak-free seal for the life of the furnace.
Easy — Slip off the old coupling, clean the fittings, and press on the new one (clamp if originally clamped). No tools beyond a screwdriver for hose clamps. Estimated time: 5–10 minutes. A perfect maintenance-visit part to keep on hand.
Genuine OEM part with same-day shipping on in-stock orders.