“Most self contained liquid cooling systems are sold with 120mm and 240mm heat exchangers, the Thermaltake Water 2.0 Pro comes with a 50mm thick, 120mm-sized heat exchanger and a pair of fans. The Thermaltake Water 2.0 Pro ships pre-filled with a distilled water/anti-freeze based coolant which circulates through 11mm diameter ‘low evaporation’ rubber tubing. It’s ready to go out of the box, no filling, no plumbing, no mess. ”
URL: http://www.frostytech.com/