This is not an ad! Take the quiz and get custom recommendations!

The Main Types of Water Filters

It’s easy to take the quality of your tap water for granted… until you can’t!

If you are worried about the water you drink, cook with, or bathe in, then it may be time for a water filtration system. provides trusted reviews and recommendations for water filters of all types and for every budget.

The contamination of U.S. drinking water with man-made “forever chemicals” is far worse than previously estimated.

CNBC, January 22, 2020

Types of Water Filters

There are a few main categories of water filters, each with pros and cons depending on your needs.

Under Sink Water Filters

NU Aqua 7 Stage Reverse Osmosis System

Undersink water filters connect to the plumbing under your sink (usually the kitchen) and provide filtered water through a dedicated faucet.

With a reverse osmosis (RO) membrane as one of the stages, these filters offer the best value since they produce LOTS of clean, filtered water.

Reverse osmosis water filters are also the most common filter type installed in the home.

Countertop Water Filters

Countertop water filters come in a variety of shapes and sizes.  Some connect to the faucet, some only need electricity, and some just use gravity.

This is the easiest way to get clean, filtered water in any situation!

Whole House Water Filters

Aquasana Rhino Whole House Well System with UV
Aquasana Rhino Whole House Well System with UV

If you want to be sure that ALL of the water in your house is safe and that every faucet and appliance is protected, then you need a whole house water filter.

Available in sizes and budgets for every home, this is the best way to be sure you’re covered.

The EPA Says Flint’s Water is Safe — Scientists Aren’t So Sure

PBS, September 10, 2019

Need Help Deciding?

Deciding can be confusing…

So we offer a short water filter course!

Sign-up for our email newsletter and get a short series of emails that will help you understand what types of filters are available and how to pick the best option for you.

Say Goodbye to Water Bottles

You may be surprised to hear that the total cost to own and maintain a water filtration system over time is LESS than drinking and cooking with bottled water!

Once you’ve made the switch, there are:

  • No more trips to the store
  • No more lugging heavy water
  • No more plastic bottle waste

The Environmental Working Group (EWG) recommends reverse osmosis water filters as the “most effective” way to filter your drinking water since it will remove up to 99% of common and dangerous contaminants.

Environmental Working Group

Take control of your water

Stop relying on anyone else to provide you with clean, healthy water!

Most undersink and countertop filters can be installed in an hour or two by anyone with good DIY skills…

Water pouring into glass
What are you drinking?