Unique to Sub-Zero and indicative of the company's innovative engineering is its dual refrigeration system, which relies on two separate, self-contained cooling systems to keep fresh food fresher and preserve frozen food longer. Sub-Zero is the only refrigeration company to offer dual refrigeration. For more than 50 years, Sub-Zero has offered innovative, aesthetically appealing and technologically advanced solutions to meet virtually any home refrigeration need. Through foresight and responsiveness, the company has earned its position as an industry leader - a position Sub-Zero intends to maintain well into the new millenium. Click Here to visit Sub Zero's Website.