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The Goodman 20214203 Condensate Drain Angle is a genuine OEM replacement fitting engineered for the Goodman GKS90904CXAD 90%+ AFUE gas furnace. As a high-efficiency condensing furnace, the GKS9 series produces acidic condensate that must be routed safely away from the heat exchanger and burner assembly — this drain angle directs that flow to the trap and drain line without leaks or restriction.
Aftermarket drain fittings frequently fail to seat correctly, causing slow leaks that corrode the burner box and secondary heat exchanger. This genuine OEM 20214203 matches factory tolerances exactly, ensuring a watertight seal and full drainage — protecting your furnace from costly water damage.
Easy (1/5). A basic hand-tool swap for any homeowner or technician. Power down the furnace, disconnect the drain line, replace the fitting, and reconnect. No specialized tools required.