Certification: We confined our testing to pitchers which were NSF/ANSI 42 and 53 Qualified. We chose to exclude water filters which were tested by other laboratories, even if they purported to meet up with the NSF's requirements. These products frequently use phrases like "independently tested to ANSI/NSF specifications. The specialty https://cristianscltc.bloggip.com/18575387/the-5-second-trick-for-glass-pitcher