The Whirlpool Mullion Rail is an OEM replacement part for Whirlpool French Door Refrigerators. It is located on the inside of the refrigerator door, specifically in the fresh food compartment. The Mullion Rail, also known as the flipper cover, acts as a divider or flap between the two compartments, between the main refrigerator section and the crisper drawers. Its primary function is to create an airtight seal when the refrigerator door is closed, preventing warm air from entering the fridge. This Mullion Rail can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Nor
