These 27-inch freezer col-umns offer design versatility in the kitchen. All refrigerator and freezer units feature digital controls, low-profile hinges, heavily insulated doors, and magnetic door seals that prevent air leaks. Moreover, antimicrobial air purification and microbiological water filtration reduce bacteria. ? Cost: $5,700 for the fridge and $5,800 for the freezer. Sub-Zero. 800-222-7820.