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Reading Your Water Filter's Performance Data Sheet

These are the conditions under which your system and replacement filters were tested.
Tests and certifications are performed by NSF or IAPMO to NSF/ANSI standards. The organization that completed the testing for your filter is listed here.
NSF-International is an independent certification organization that develops test protocols and standards for drinking water filtration systems. NSF requires that each contaminant is reduced by a certain percentage specific to the water filtration system. These standards are listed below.
Whole Home Performance Data Sheet Example

National Sanitation Foundation
International Standards

NSF 42

Filters are certified to reduce non-health related contaminants: chlorine, taste, odor, and particulates that might be in your drinking water.