This dairy door, also known as a dairy bin cover, is a genuine OEM replacement part for your refrigerator. The dairy cover is a plastic part that serves as a covering to a shelf on your fridge door, traditionally where dairy products such as butter are housed. The door can become cracked and need replacing. This door is held in place by plastic tabs. To remove it, push one side in to release the tab, and pull the door out. Simply snap the new dairy door into place.