The Glo-Ray® Heated Shelf is a free-standing shelf that measures 18" wide and 21-1/2" deep. It features an adjustable thermostat, an aluminum base, and a stainless steel top. It is cUL, UL, UL EPH Classified, and ANSI/NSF 4 certified. The heated shelf has a blanket-type element that provides uniform heat distribution. It also has fiberglass insulation to keep the heat at the holding surface. The built-in adjustable thermostat allows you to control the surface temperature. This heated shelf is ideal for pass-through areas, buffet lines, or as a heated work shelf. It comes with a 72" cord and plug attached. The Glo-Ray® Blanket Heating Elements are warranted against burnout for one year. The shelf is made with an extruded aluminum base and a stainless steel top. It is available in widths ranging from 18" to 72" and depths ranging from 6" to 25.5". The standard legs are 4" for units 36" or wider and 1" for units 30" wide and under. There are also various options available at the time of purchase, including different designer colors for the top surface and a hardcoated surface instead of stainless steel for certain models. Accessories such as a slant leg kit, adjustable legs, and pan rails are also available.