The 20000239 is a genuine Bosch Suspension Ladder System - FlexBar. The Bosch 20000239 Suspension Ladder System - FlexBar fits the following brands of refrigerators: Bosch The Bosch 20000239 ensures that your refrigerator remains stable and secure, even during heavy use. The Suspension Ladder System - FlexBar is also called a freezer flex bar. It is recommended to either refer to your appliance service manual, contact your appliance manufacturer, or contact a service professional to validate the needed part number for your appliance prior to purchasing.