The Bosch 12013743 Refrigerator Fill Safety Valve regulates water flow into the designated filling system of compatible refrigerators. This valve opens to admit water when required and closes to stop the supply once the filling cycle reaches its intended point. It works with the refrigerator’s water delivery components to support proper filling operation and limit unwanted water flow.... https://www.hnkparts.com/12013743-valve-fill-safety-bos