This liquid cooling solution offers great cooling at low noise levels and is easy to install.
It's not capable of beating the best air coolers though.
"At first glance, the Antec Kuhler H20 620 looks like many of the other self-contained liquid cooling solutions out on the market. It's when you look closer that it looks like a hybrid solution. The radiator looks to be the same one used in the Asetek 550LC while the pump looks like the one used by the 570LC (the higher capacity pump assembly). One of the key differences between this product and competing products is the use of a more flexible rubber tubing that makes the installation of the Kuhler 620 less of a challenge. As you can see in the following pictures, the tubing easily forms a tight radius without kinking. The length of the tubing is long enough to use in a large chassis. The Kuhler H20 620 consists of three distinct parts, the radiator, the tubing and the pump/coldplate assembly."