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The Goodman 20214203 is a genuine OEM condensate drain angle (elbow) fitting for the GKS90904CXAC gas furnace and related Goodman/Amana high-efficiency models. This molded angle redirects condensate flow around the cabinet and heat exchanger assembly, connecting drain-hose segments at the correct bend so water clears the unit without pooling. A cracked or leaking drain angle is a common cause of cabinet water stains and pressure-switch faults — replacing it with the factory part restores a sealed, properly routed drain path.
The genuine Goodman angle is molded to the exact port diameters and bend angle of the GKS90904CXAC drain system, delivering a tight, drip-free connection between hose segments. Generic elbows rarely match the barb sizes and can leak or pop off under thermal cycling. OEM ensures a factory-correct seal and long service life.
Easy (1/5). No tools required. De-energize the furnace, remove the connected drain tubes, swap the old angle for the 20214203, and reseat the hoses fully on each barb. Confirm no leaks on the next cycle. Typical time is 10–15 minutes.