Other Food Prep Equipment. Features Designed to keep pre-chilled food products in the perfect chill zone for serving, Undermount shelves can be installed under the countertop of your choice (approved materials include granite & quartz up to 30mm; Swanstone (provided by Hatco); certain stainless steel or aluminium surfaces approved by Hatco, Electronic temperature control box with 1219mm lead wire, Anodized aluminium surface