The NEW 20′ long Combo Box was custom designed for special events and food service customers that need a cost-efficient solution to store both refrigerated and frozen goods in a compact space. Combining two cold storage in one portable shell, the Combo Box can be set to maintain two simultaneous temperatures, with the refrigerator section capable of maintaining temperatures as low as 32 ℉, and the freezer section as low as -5 ℉. Designed in 2020, the Combo Box is the world’s only dual temperature portable walk-in freezer powered by SINGLE PHASE 220 volt electricity. Equipped with dual Danfoss refrigeration systems and adjustable thermostats, this quiet, energy-efficient unit is ideal for storing your cool and frozen products.