Antec h2o kuhler 1250 water cooling kit 2xpwm fan 240mm radiator led temp sensor next generation maximum performance liquid cpu cooling system the antec katildeoelighler h2o 1250 provides maximum performance liquid cooling for your cpu and delivers best in class performance in a quick easy to install package unlike traditional liquid cooling systems this self contained unit comes prefilled and requires no maintenance two 120 mm voltage controlled pwm fans and dual extra large pumps