The Delfield N8258-STP is a high-performance drop-in frost top designed to accommodate three sheet pans arranged vertically. Its heavy-gauge galvanized steel exterior ensures durability and longevity in demanding kitchen environments. The unit features an on/off toggle switch for easy operation and a perimeter gasket for optimal temperature retention. With self-contained refrigeration utilizing R290 refrigerant and a powerful 1/4 HP compressor, this frost top maintains consistent cooling. A cutout of 56.60" x 28.75" is required for installation. The product meets cUL, UL, and NSF standards, ensuring safety and reliability in food service applications.