Customer Questions and Answers for Refrigerator Door Flipper Mullion (Center Rail) by Whirlpool

This refrigerator door flipper mullion is the folding center rail that bridges the gap between the doors. It helps complete the door seal and reduces condensation along the center for better temperature retention.

• Bridges the gap between doors to complete the center seal and improve efficiency
• Folds out of the way when a door opens; flips into place as the doors close
• Helps limit moisture/sweating at the middle of the refrigerator
• Replaces a cracked, loose, or broken mullion that causes air leaks, doors popping open, or poor sealing

• Disconnect power before servicing; remove door bins for access
• Remove mounting screws; lift off the assembly and disconnect the harness if equipped
• Transfer any end caps/brackets; ensure spring orientation and proper wire routing during reassembly
• After installation, verify smooth flipping action and a continuous gasket seal down the center