"The Zalman Reserator XT External Water Cooling System performs very well, is super easy to install and very compact. If you are looking for a compact water cooling system that is on par with some of the separate hardcore water cooling kits, I would strongly recommend you check out this product. With a 120mm fan, 120mm radiator, 500L/hr pump and newly designed solid copper CPU water block, it's extremely impressive. This unit also comes with quick connect couplings. These quick connect couplings enable easy connection and disconnection of tubes. This means the water block can be installed or removed without having to drain and refill the reservoir. Watch the video to find out more and check out the bloopers at the end." ~3dGameMan.com