The Culligan IC-EZ-4 Refrigerator Water Filter allows you to filter the water in your refrigerator s icemaker and water dispenser so that you ll always have clean and delicious water for drinking and cooking. The Culligan IC-EZ-4 icemaker filter offers Culligan s Level 4 Premium Filtration -- and as such removes more than the IC-EZ-3 and IC-EZ-1 refrigerator filters. The Culligan IC-EZ-4 fridge filter removes bad tastes and odors the taste and odor of chlorine class I particulates sediment turbidity lead mercury VOCs MTBE and cysts such as cryptosporidium and giardia. Furthermore the Culligan IC-EZ-4 will filter out chloramines from your water which more and more municipal water supplies are using as a disinfectant. To remove chloramine you need a genuine chloramine filter -- a carbon filter that filters chlorine from your water will not remove chloramines in your water. This Culligan refrigerator filter is an easy change filter meaning the replacement filter cartridge is installed with a flick of the wrist. Installing the Culligan IC-EZ Filter System is similarly easy due in large part to the filter head s built in bracket. If your refrigerator doesn t have a built in water filter this system will mount easily to your existing copper or plastic water line. Now you can have filtered drinking water right from your fridge as well as ice made with filtered water -- no more ruining drinks with chlorine-flavored ice!