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The Goodman 20214203 is a genuine OEM condensate drain angle designed for the WGFM195070S4CAB high-efficiency gas furnace and compatible Goodman/Amana models. In a condensing furnace the secondary heat exchanger produces acidic condensate that must be routed safely to the drain trap; this angle fitting establishes the correct pitch and connection point so water flows away from the burner box and inducer instead of pooling inside the cabinet. Using the factory part guarantees the exact geometry and material the drain system was engineered for.
Generic drain fittings are often close but not exact, leading to poor pitch, slow leaks, and eventual water damage or nuisance pressure-switch lockouts. The OEM 20214203 seats precisely against the factory drain manifold and gasket, so you get a leak-free connection the first time. For a part at this price, there is no reason to gamble on a look-alike.
Rating: Easy (1 of 5). Replacement typically takes under 15 minutes with basic hand tools. Shut off power and gas, disconnect the existing drain line, swap the angle, verify the trap is primed, and confirm proper drainage before restoring power. No specialized tools required. If you are unsure about condensate routing or code requirements, consult a licensed HVAC technician.