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EWG’s UPDATED Water Filter Buying Guide

Wednesday, February 27, 2013

EWG’s UPDATED Water Filter Buying Guide

Find the right filter for your water – and budget

EWG's Water Filter Buying Guide

How to choose a filter system that meets your needs

Watts Premier Ultra 5

Manufactured by
Watts Premier
System type
Rated lifespan
Filter technology
reverse osmosis

California Department of Public Health Certification

Certification number: 00-1452
California certifies this filter reduces: Selenium (total), RADIUM 226/228, PERCHLORATE, Lead (total), FLUORIDE, Copper, Chromium (total), Chromium (hexavalent), Cadmium (total), Barium (total), BACTERIOSTATIC EFFECTS, Arsenic (total).

NSF Certification

NSF certifies that this filter reduces: Arsenic V; Barium; Cadmium; Chromium 6; Chromium 3; Copper; Cyst; Flouride; Lead; Perchlorate; Radium 226/228; Selenium; TDS; Turbidity


Find a filter that works best for you:

Water filter type
Filter technology
Certified to reduce

see more contaminants

Updated March 28, 2013

Key Issues: