Bests & Worsts Reviews from Amazon

I've been using this for several months now, and I have nothing bad to say about it. After about 10 gallons or so it must be cleaned to remove residue. That may vary according to your own water supply. I bought another for my daughter because I was so impressed by it. I use it for drinking water and cooking water. In adding a picture, I need to state that the nut is a thickness of .265 thou. or 6 73mm. That is the approximate thickness of the height of the chemical buildup left in tank after about 10 gallons has been processed. This is using a a small city municipality water supply system in Iowa.