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The Goodman 10254303 rubber coupling is a genuine OEM sealing component engineered for GMH950703BXAE 95% AFUE gas furnaces and compatible Goodman/Amana condensing models. It creates a leak-tight connection between condensate drain and pressure-tube fittings, preventing water seepage and nuisance pressure-switch faults that lead to lockouts. Made from HVAC-grade EPDM rubber, it resists heat, acidic condensate, and long-term compression set.
This is a genuine OEM Goodman coupling machined to exact factory tolerances, guaranteeing a slip-free seal on the original barb sizes. Generic aftermarket couplings are cheaper but often vary in inner diameter, causing slow drips, blow-offs, or premature hardening. For a critical drain/pressure seal, OEM is the reliable choice.
Easy (DIY-friendly). No tools required — power down the furnace, slide off the old coupling, and press the new one onto the fitting. Typical replacement time is under 5 minutes.
Always disconnect power before servicing. When in doubt, consult a licensed HVAC technician.