![Water being poured into glass from pitcher](jpg/twdb_waterfilterg_header.jpg)
EWG’s water filter guide
Find the right filter for your water – and budget
Consulta la versión en español de cada guía
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.
- LEAST EXPENSIVE
- MOST EFFECTIVE
- SOFTEN HARD WATER
- REMOVE SPECIFIC
CONTAMINANTS
![carbon-based water filter](jpg/twdb_waterfilterg_carbon.jpg)
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.
![reverse osmosis filter](jpg/twdb_waterfilterg_reverseosmosis.jpg)
Reverse Osmosis Systems
A reverse osmosis system combined with a carbon filter is most effective at removing water contaminants.
![water softener](jpg/twdb_waterfilterg_softener.jpg)
Soften Hard Water
A whole-house water softener combined with an ion exchange filter softens your water and reduces the levels of some contaminants.
![water filter parts](jpg/twdb_waterfilterg_link_filtermainte.jpg)
Step-by-Step Guide to Selecting a Home Tap Water Filter
Find the right filter for your water – and budget.