Perfect for multifamily units or small houses, the HC 1540 is part of the 1500 Series of fully integrated 30-inch, single-door refrigerators. Among its features, the unit has an ice maker that does not require a water connection thanks to a 1.5-liter internal water tank, and its 24-inch depth means it can be installed flush with cabinetry. Cost: $4,869. Liebherr. 866-543-2437. www.liebherr-appliances.com.