Water Filter IQ

The Authority in Water Filter Testing & Reviews

Welcome to Water Filter IQ – the best online resource for water filter test results trusted reviews and comparisons.

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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:

Water Dispensers

We review all types of water dispensers:

Tankless Water Heaters

Tankless water heaters are the more efficient alternative to hot water tanks.

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.

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: