I have been using Zero Water pitcher and filters for over five years, since I first that nearly every water system in the US contains Chromium 6. Zero Water was (and still is, to my knowledge) the *only* pitcher filtration system that filters out every single particle of everything, including Chromium 6. I am so grateful I learned from Environmental Working Group about this deadly carcinogen, and then discovered Zero Water. I will NEVER drink tap water filtered with anything else.