3-Stage Under the Sink Replacement Filters
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3-Stage Under the Sink Replacement Filters
3-Stage Under the Sink Replacement Filters

3-Stage Under the Sink Replacement Filters

$ 440.00
In Stock - Available now!
Free Shipping USA
Free Shipping USA
Built in the USA
Built in the USA
The Filters

Tool-Free Filter Changes

When it’s time to change your filters, just screw off the old and screw in the new. It’s that simple. No need to turn off the water with our auto-shut one-way valve heads built into the system. 

2,000 Gallon Filter Life

The extended filter life can provide clean and safe water for an average of 12 months before needing to be replaced*.

R.O. Quality Water Without the Hassle

Our 3-stage filtration system with Affinity® Filtration Technology removes 90.7% of fluoride. And we don’t stop there—our system removes up to 99.9% of 232+ contaminants while keeping in the beneficial nutrients naturally found in water.

R.O Quality Water without the need for a plumber
See Why It's So Good

Unlike typical filter technologies, our breakthrough Affinity Filtration Technology uses 7+ proprietary filtration materials to create multiple stages of filtration that can remove up to 99.9% of 232+ contaminants. This means no need for a plumber, simple easy-twist filter replacement, contaminant removal levels beyond reverse osmosis and no permanent installation. It's a no-brainer!

Stage 1:
Stage 2:
Stage 3:
Stage 1:

Water first passes through a woven, stainless steel mesh screen, which keeps larger particles from entering the filter. Built in the USA.

Stage 2:

Next, water continues through a loose granulated coconut carbon filtration layer, which removes chlorine, bad tastes, and odors. Built in the USA.

Stage 3:

Water then flows through the filter’s composite shell, which is made of 7+ proprietary filtration materials. This dense layer slows down the flow of water and allows for the filter to have more time in contact with the water. The combination of the proprietary breakthrough technology and additional contact time allows for superior removal percentages on all contaminant types. Built in the USA.

Customer Reviews
4.9 Based on 160 Reviews
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Filter Reviews:
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Janet G.
United States
I recommend this product

Super easy

Love our under counter filtration system. Unfortunately the water main to our house broke this winter and the only way we could drink or cook with water (when we turned on the water valve) was by using the ClearlyFiltered system that we installed last Spring during our kitchen renovation. The water using the filter was crystal clear. We then needed to replace our hot water heaters due to build up, so went ahead and replaced the under sink filters early. It also makes the best, smooth coffee

Emily J.
United States United States
I recommend this product


So far we are loving this system. You can definitely taste the difference in the water. We have well water and there is an iron taste to it. After installing the system the water taste much cleaner. It took about 15 minutes to install with no problems. My husband is now thinking of getting one for his business. So far so good!

Aleesha N.
United States United States
I recommend this product

Taste improvement

This water filter had drastically changed the flavor of my water for the better. I got the filter to improve the water for my family overall, but have not had it tested. Even without testing I can tell the water is improved. I will continue to buy this filter.

On L.
United States United States
I recommend this product

Get it

Love Love Love it

Diane A.
United States United States
I recommend this product

Fantastic !

Had a plumber install to dedicated faucet. Best tasting water, no after taste and great flow ! Hands down the best !

Frequently Asked Questions
How often should I change my filters?
The Under the Sink System (UTS) is built for large quantities of water and will last for up to 2,000 gallons. That milestone is reached at different times according to the number of people using it. Our guidelines are as follows:

Individuals: 15 months
Couples: 12 months
Families: 9 months

All three filters must be changed at the same time. All municipal water supplies are different, so the frequency at which filters need to be changed is always approximate. We recommend making a note of your installation date as a reminder of when to replace the filters or you can sign up for our filter subscription: you’ll never forget to switch your filters and you’ll save 10% on each filter replacement!

*If your tap water is heavily contaminated (most likely if you live in a large or older city), your filter must work harder to keep your water clean, which will decrease the life of the filter.
Which contaminants do the UTS filters remove? (e.g., Fluoride, Lead, Chlorine)
Our filtration technology removes over 230 contaminants. We use an independent, EPA-certified lab to rigorously test our filters to NSF standards. Here are just a few of the more notorious contaminants this filter removes:
  • Fluoride: removed at a rate of 90.7%. It is difficult to remove once it’s added into the tap water and typical carbon-block style filters don’t have fluoride removal capabilities. For that reason we specially formulated our technology so fluoride removal is standard with every filter.
  • Glyphosate: The active ingredient in Roundup® weed killer. Our filters remove >99.9% of this highly controversial chemical.
  • PFOA/PFAS/PFOS: The chemicals that make pans and apparel “non-stick” but are extremely toxic when consumed. Removed at a rate of >99.8%.
  • Lead: Even though it’s been widely banned due to its highly poisonous nature, lead pipes remain in use across all 50 states. Lead is harmful to human health even at low exposure levels and accumulates in the body over time. Removed at a rate of 98.9%.
  • Chlorine: While chlorine is effective at reducing the spread of infectious waterborne diseases, it reacts with naturally-occurring materials in water to form dangerous chemical byproducts that threaten your health. Removed at a rate of >98.6%.
We are all about transparency so we post our full test results on our Test Results Page.
What material are the Under the Sink filters made of?
The Under the Sink (UTS) unit is made with a proprietary blend specifically formulated for Clearly Filtered. These filters are made from a multi-blend of catalysts that remove the contaminants commonly found in municipal tap water giving you and your family convenient, clean, and safe drinking water.

*If your tap water is heavily contaminated (most likely if you live in a large or older city), your filter must work harder to keep your water clean, which will decrease the life of the filter.