The Rinse Aid Cap is an OEM part for GE dishwashers. It securely seals the rinse aid dispenser, ensuring that the rinse aid is properly stored and dispensed during the wash cycle. This helps improve the drying process and prevents water spots on dishes and glassware. You should replace this rinse aid cap if it becomes cracked, loose, or fails to seal properly. Common causes of a bad cap include wear and tear from regular use, damage from over-tightening, or deterioration due to exposure to dishwasher detergents and rinse aids. Symptoms of a bad rinse aid cap include: Rinse aid leaking or spilling inside the dishwasher Cap not staying securely in place Poor drying performance or water spots on dishes Difficulty in opening or closing the cap This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.Part Number WD12X10122 (AP3777967) replaces 1057401, AH958932, EA958932, PS958932, WD12X10102, WD12X10200.