Fluoride is a little bit harder to get rid of as well as filters are generally quite highly-priced. Filters that contain activated alumina are very best suited to getting rid of fluoride from water. An activated alumina filter of four.five″ x 20″ could be ideal for the Pentek filter housings. http://anytime-sports54208.blogvivi.com/10082644/5-simple-techniques-for-pure-water