Proofer/Heater Cabinet, removable stainless steel tray rack with fixed 3' OC, for (18) donut screens either 23"X33" or 23"X23", humidified proofer/heating system, adjustable thermostat, separate controls, non-insulated cabinet, (1) see thru lexan door, removable water reservoir, stainless steel interior & exterior, 5' casters (2) rigid & (2) swivel with brakes, UL, cUL, NSF