I've used the ZeroWater pitchers for several years and have found them to be the best for delivering clean, sparkling water. I try to do what is best for my family, my pets, and the environment.  Our tap water smells very strongly of chlorine, The thought of what it can do to our insides (regardless of how small the amount may be) is not a pleasant thought. My tap water would kill my fish, so why would I want to drink it?  I'm very pleased with the filtration my pitcher provides.