Welcome to Water Filter IQ – the best online resource for water filter test results trusted reviews and comparisons.
Why Trust Our Reviews?
We have been researching, analyzing and reviewing water filters since 2009, and we review the market on a monthly basis for new products or information.
We have our own test facilities which include highly sensitive water testing equipment. You can learn more about our testing and research methods here.
While we do earn commissions on some affiliate links, all of our reviews are independent and comparisons are unbiased.
Home Water Treatment Reviews
We review a variety of home treatment equipment, from water filters, dispensers & coolers, softeners, tankless water heaters, and water bottles.
Water Filters
We are best known for our expert water filter reviews, of every type available:
- Whole House Water Filters
- Faucet Water Filters
- Countertop Water Filters
- Water Filter Pitchers
- Inline Water Filters
- Under-Sink Water Filters
- Water Distillers
- Reverse Osmosis Systems
Water Dispensers
We review all types of water dispensers:
- Top-Loading Water Coolers
- Bottom-Loading Water Coolers
- Bottleless Water Dispensers
- Instant Hot Water Dispensers
Tankless Water Heaters
Tankless water heaters are the more efficient alternative to hot water tanks.
- Gas Tankless Water Heaters
- Electric Tankless Water Heaters
- Outdoor Tankless Water Heaters
Water Softeners
Water Softeners are a staple in many homes across North America. They improve the efficiency of water appliances and improve the feel of water in your shower and bath. Our guide on the best water softeners will help you find the perfect unit for your home.
Water Bottles
There are thousands of water bottles on the market today, and we’ve reviewed them all.
- Filtered Water Bottles
- Glass Water Bottles
Water Filters by Contaminant
If your local water source has a known contaminant, or you are particularly concerned about a specific one, you can read our guides on filters by contaminants: