Menu

EWG's Tap Water Database — 2019 UPDATE

Donate
Water being poured into glass from pitcher

EWG’s Water Filter Guide

Find the right filter for your water – and budget

What’s most important to you in a water filter?

Whether you want the least expensive or most effective filter, a filter to soften hard water or one to remove specific contaminants, you can find options below.


carbon-based water filter

Carbon Filters

A carbon filter can reduce the levels of many common contaminants, such as lead and disinfection byproducts. There are many options for carbon filters, from countertop pitcher filters to faucet-mounted filters, undersink filters and whole-house filters.

READ ABOUT CARBON FILTERS
reverse osmosis filter

Reverse Osmosis Systems

A reverse osmosis system combined with a carbon filter is most effective at removing water contaminants.

READ ABOUT REVERSE OSMOSIS SYSTEMS
water softener

Soften Hard Water

A whole-house water softener combined with an ion exchange filter softens your water and reduces the levels of some contaminants.

READ ABOUT WATER SOFTENERS
Water flowing out of tap

Step by Step Guide

Find the right filter for your water – and budget.

CHECK OUT THE GUIDE