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Genuine OEM Goodman 20214203 condensate drain angle (elbow) fitting, a factory replacement for the GCV90905DXBB 96% AFUE gas furnace. This molded angle fitting redirects the condensate drain line around the cabinet and into the trap at the correct pitch, keeping water flowing away from the burners and inducer. A cracked or clogged angle fitting is a frequent cause of condensate leaks and pressure-switch nuisance faults on condensing furnaces.
The OEM angle fitting matches Goodman's exact barb diameters and bend angle, so it seats securely and maintains the drain slope the furnace was designed around. Generic plumbing elbows may not match the tube ID and can restrict flow or leak at the joints. For a clean, leak-free condensate path, use the OEM fitting.
Rated Easy — push the fitting onto the drain tubes and secure with clamps; usually a nut driver is all that's needed. Shut off power and gas before servicing, and flush the trap and line while you have access. Call a licensed HVAC technician if the routing isn't clear.