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The Goodman 20214203 is an OEM condensate drain angle engineered as a direct-fit replacement for the GKS90703BXAH gas furnace. In high-efficiency and induced-draft furnaces, the drain angle routes acidic condensate away from the heat exchanger and collector box, protecting the cabinet and floor from moisture damage. A cracked, clogged, or missing drain angle is a common cause of water pooling and nuisance pressure-switch faults.
The genuine Goodman OEM drain angle matches the factory geometry and hose-barb sizing exactly, so drain tubing seats without leaks. Generic or universal drain fittings often require trimming or adapters and can create a poor seal that leads to slow drips over time. For a leak-free repair on the first attempt, OEM is the safer choice.
Easy (1/5). Typically a snap-in or slip-fit connection to the existing condensate tubing—no wiring and usually no tools beyond a nut driver. Always shut off power and gas before servicing.