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The Goodman 20214203 is a factory OEM condensate drain angle engineered for the GCH90905DXAA 90%+ AFUE gas furnace and compatible Goodman/Amana high-efficiency models. This drain fitting routes condensate away from the secondary heat exchanger and collector box, protecting internal components from moisture damage and corrosion. A worn, cracked, or clogged drain angle is a leading cause of water leaks and pressure-switch nuisance lockouts.
This is a genuine Goodman OEM part manufactured to exact factory tolerances, guaranteeing a leak-free seal and drop-in fit. Aftermarket generic drain fittings often vary in port diameter and angle, leading to slow leaks and repeat service calls. For a moisture-critical component, OEM is the safe long-term choice.
Easy (1/5) — Remove furnace panel, disconnect the condensate line, swap the fitting, and reconnect. Typical time under 15 minutes with basic hand tools. Always shut off gas and power before servicing.