The PBF 4.0 undercounter blast chiller uses R290 refrigerant and has outside dimensions of 25? inches wide by 27? inches deep by 33? inches tall. The units can accommodate four food trays 12 inches by 20 inches by 2? inches deep or 5 food trays 12 inches by 20 inches by 2 inches deep. Other features include a fully programmable controller and a 2.4-inch OLED display.