Whirlpool Rail Mullion For Refrigerator is Compatible with Amana, Jenn Air, Kenmore, Kitchen Aid, Maytag, Whirlpool brands. Replacement for 12722806B, 12722813B, 12732503B, 67006305, 67006401, W10151713, W10164405. This refrigerator door flipper creates a seal between the two French doors to prevent the cool air from escaping.