The Glo-Ray® Built-In Heated Shelf with Flush Top is a versatile and efficient addition to your serving surface. With a surface area of 73-1/2" x 25-1/2", this shelf features a hardcoat aluminum top for durability and uniform heat distribution. The built-in adjustable thermostat allows you to control the surface temperature, while the illuminated on/off switch and mounting bracket make it easy to operate. This shelf is NSF, cUL, UL, UL EPH Classified, ANSI/NSF 4, and CSA certified for added safety and reliability. The .75" flanged edge allows for easy installation into a countertop opening. Available in various widths and depths, this shelf is recommended for use in metallic counters. Optional features include designer colors for the flush mount control bezel box, conduit in lieu of the standard 3', stainless steel top surface, and flush mount electronic or thermostatic control boxes with lighted power switches. Please note that models with a flush mount recessed electronic control box are not CE approved, and non-standard colors are non-returnable. Hatco is not responsible for any counter damage caused by heat from the warmer.