Best water filter I have ever owned hands down. The. Water tester shows that this filter does its job. I owned a Brita and it tested my water at 80! Yuck!! So glad to have 0 water!! Taste is great, quality of the container in great. I live in CA so the water is pretty dirty. I filled the container every day and the filter lasted me about 5 weeks. I literally bring my tester to my families house to show them how “clean” their water was and I have sold them all on zero water!