This Frost Top unit is designed to hold 3 sheet pans in a tall left to right configuration. It features a heavy-gauge galvanized steel exterior housing, an on/off toggle switch, and a perimeter gasket. The unit also has self-contained refrigeration with R290 refrigerant and a 1/4 HP compressor. A cutout of 56.60" x 28.75" is required for installation. This unit is cUL, UL, and NSF certified. We also offer a variety of other frost top and cold slab units.