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The Goodman 10254303 rubber coupling is the genuine OEM connector used in the induced-draft and condensate assembly of the WFD195045S3BAA furnace. This flexible coupling forms an airtight, vibration-tolerant seal between rigid components — such as the inducer housing, pressure-switch tubing path, or drain fittings — so combustion gases and condensate route correctly. A cracked, hardened, or leaking coupling can cause pressure-switch faults, a furnace that won't stay lit, or water leaks.
The OEM Goodman coupling is molded to the precise inside/outside diameters and durometer for this furnace, guaranteeing a leak-free fit. Generic hose may fit loosely or degrade faster near heat. For a sealed, worry-free repair, choose OEM.
Easy (1 of 5). About 10 minutes. Power down the furnace, loosen any clamps, slide off the old coupling, and press the new one fully onto both fittings. Confirm a snug seal and re-secure clamps. No special tools required.