"The NorthQ 3590 Siberian Tiger II CPU Water Cooler is completely closed and sealed, so there is no maintenance required. This means no refills are required and no risk of leaks. Since it's completely configured there's no need for any extra installation like many other liquid cooling kits. By combining the waterblock, pump, reservoir, and radiator together, it reduces the traditional four-component loop into just one-component. This substantially decreases the space required for installation and it really simplifies the installation process over traditional water cooling kits. The only downside to this product is you need a case that has provision for a 240x120m radiator. This is an excellent option for anyone who wants to get into water cooling but don't want to do it with the traditional water cooling components. Watch the video to find out more..." ~http://www.3dGameMan.com