I do not normally write reviews. After owning a Berkey for about a year, I decided to look for a better filter which removes radiation, as well as all the normal contaminants, and fluoride. I decided upon Pure Effects after much research, as they are an American Company, with what I feel is the best system, and great people to deal with as well. Their service, as well as their product are both top notch. I have been using this filter for awhile now, and it is much better than my Berkey. Actually ,night and day different. The water it produces is crisp, clean, and tastes how water should. It is easy to setup, and use. I could not be more satisfied. I will recommend this system to anyone who values truly pure water, that tastes great as well.