Master-Bilt HOAM48 48" Horizontal Open Air MerchandiserConstruction Contemporary styling provides an attractive product showcase. Standard electronic controller with these features: ability to monitor defrost functions from the front panel interface audible and visual alarm eliminates room thermostat, defrost termination fan delay control, defrost timer and digital thermometer or other temperature indicator. 24 gauge painted textured galvanized steel interior and exterior. Stainless steel floor pans.