Removed from a working sub zero 680. But fits other models as well. See pictures for measurements and details. Good condition and clean.

The Sub-Zero Refrigerator 680 Dairy/Butter Compartment Shelf Assembly 4330620 is a white electric shelf designed specifically for the Sub-Zero 680 and 685 models. It features a butter compartment, making it suitable for storing both dairy and butter items in a larder fridge. Made in the United States, this shelf has a capacity of 21.6 ft³ and operates at less than 200W. It is a genuine Sub-Zero product, ensuring quality and compatibility with your refrigerator.