The Hatco 20 inch Modular Heated Glass Shelf (HGSM-1P) is an electric powered, blanket-heated glass shelf that's set on a stainless steel base to maximize durability. This glass shelf can handle a 12 inch by 20 inch food pan, and its modular so chefs can set several of them together for even greater cooking capacity. Thermostatic controls are easy to use so chefs can cook food precisely, and Hatco - HGSM-1P - 20 inch Modular Heated Glass Shelf is simple to clean and move.