Presenting the Ultima PLUS Ultra-low Temperature Chest Freezer from Thermo Scientific Revco. ULT390-10-A features a PLUS Power Management System with low voltage surge protection and buck/boost capabilities. It has 3 cu. ft. capacity and a temperature range of -50 to -86 degree C with a manual defrost. Its single solid door has an ergonomically designed handle that minimizes the effort required during freezer openings and closings. Its interior and exterior is made of superior stainless steel that ensures easy cleaning, maintenance and durability.