Most water filters improve taste. This one removes what is actually worth removing. AquaTru's 4-stage RO system is certified to NSF standards to remove 84 contaminants from tap water including PFAS, lead, fluoride, chlorine, arsenic, and microplastics, which is 15 times more than a standard pitcher filter. No plumbing or drilling required. It sits on the counter, plugs in, and works. One of the most meaningful swaps in the home.