Drinking Water Filter
Countertop Water Filter

Instantly transforms tap water into healthy, great-tasting water with no installation or permanent fixtures.

CWM water filter

Want more versatility? Our Clean Water Machine comes with a portable pitcher or countertop dispenser. Shop Now

Countertop Water Filter - White is rated 4.5 out of 5 by 866.
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$5499 COUNTERTOP WATER FILTERS - limited time!
  • MSRP: 114.27
  • Sale: 54.99

Save 52% + free shipping with Water for Life $54.99

Questions? We can help

  • 866-662-6885

Whole Health

Ultimate Purity*

Instantly transform ordinary tap water into clean, extraordinary water.

NSF Certified Claryum® filtration technology independently tested and proven to remove over 97% of chlorine and chloramines. Also reduces:

  • Heavy metals like lead and mercury
  • Chlorine resistant cysts like giardia and cryptosporidium
  • Organic chemicals like herbicides, pesticides and VOCs
  • Pharmaceuticals like estrone and ibuprofen

For a complete list of contaminants reduced please see our Performance Data Sheet.

Aquasana filters 10 times more contaminants

Whole Health

Ultra Delicious

Claryum®'s selective filtration technology retains naturally occurring beneficial minerals in your water like Calcium, Potassium and Magnesium for healthier, more delicious water!

Whole Health

Eco Friendly

Designed with the environment in mind! Intelligent system design reduces plastic waste by minimizing disposable plastic parts.

Pure Performance

Claryum® Technology

Activated Carbon Reduces pharmaceuticals, herbicides, pesticides, VOCs and MTBE.

Catalytic Carbon Targets chlorine and chloramines.

Ion-Exchange Filters heavy metals like lead and mercury.

Absolute Sub-Micron Mechanical Filtration Captures asbestos and chlorine resistant cysts like cryptosporidium and giardia.

The result: 10x more contaminants reduced than the leading pitcher plus healthy minerals retained for purely delicious filtered water.

Pure Performance

Easily Attaches

No permanent fixtures or installation required. Simply screw on the faucet attachment for filtered water right from your tap! No more big, bulky filters cluttering up your sink space.

Pure Performance

Convenience & Value

Fewer filter replacements. More clean, great-tasting water.

One Aquasana Claryum® filter gives you 11x the capacity of the leading gravity-based pitcher at only 11¢ per gallon.

How It Works

Superior Systems

Selective Claryum® Filtration

Reduces 68 contaminants while retaining beneficial minerals for optimal hydration.

Easy to install, replace & maintain

No permanent fixtures or installation required.

certified by NSF

Full system certified to NSF/ANSI Standards 42, 53, 401 + P473.

  • 450 gallons
  • 6 month filter life
  • 1 year warranty
  • 90 day guarantee

Help & Support

Video Help

  • How to install the countertop faucet water filter
  • How to replace the AQ-4000-R countertop filters

Installing the countertop faucet system

Replacing the filters in the AQ-4000

Learn More

Read the Reviews

Rated 5 out of 5 by from Love it We have horrible tasting water and since I began using the Aquasana filter, I can actually drink the tap water. Coffee and iced tea taste much better, also.
Date published: 2017-11-17
Rated 3 out of 5 by from Filter vs Countertop device.... I can not understand how can a filter replacement (AQ4000) can cost more than the whole countertop water filter. Replacement filter cost $59.99 and the whole countertop water filter (including the filters) cost is $57.13
Date published: 2017-11-16
Rated 4 out of 5 by from Recently Purchased Recently purchased. Easy installation. So far great tasting water. Product price was competitive. Will write another post in a month to update any changes.
Date published: 2017-11-16
Rated 5 out of 5 by from Easy Super easy install - less than 5 minutes! Took longer to run the water through - 10 minutes - before drinking. Great water flow - very pleased.
Date published: 2017-11-16
Rated 5 out of 5 by from WORKS GREAT I bought the Aquasana countertop water filter a couple of months ago. I chose the color black because all my appliances are black. It takes up only a small space on my counter top. It was easy peasy to connect. I have had no problems with this product.
Date published: 2017-11-13
Rated 4 out of 5 by from easy to install It was easy to install, very easy and convenient to use. I need to try again to eliminate the drip that comes through the faucet when I'm using the filter.
Date published: 2017-11-13
Rated 3 out of 5 by from Assembly The assembly was not as easy as outlined. Had problems mounting dispenser to the faucet as rubber washer did not stop it from leaking initially. Had to adjust faucet adaptor to stop the leak. When turning on the water to clean the filter, the bottom of one filter leaked. After unscrewing the cap (which is very difficult by hand. Had to use ratchet tool to unscrew) to get to the filter, I found that the filter was "upside down" and the o-ring was slightly cut. Had an old filter with o-ring and replaced it; otherwise, I would have had to call to have o-ring replaced. That would have been a great inconvenience. The product itself produces very clean and good tasting water.
Date published: 2017-11-09
Rated 5 out of 5 by from Very nice looking & compact. I just got this & I love it! It is compact & looks great. Very well made & easy to attach. The only con is the water runs a little slow.
Date published: 2017-11-02
Rated 5 out of 5 by from Easy to install I watched the installation video of the countertop water filter before I purchased the unit. It looked easy on the video but I was skeptical. Thrilled to see installation was as easy as portrayed and I had filtered water in minutes. Also like the fact that the nozel allows you to choose either filtered water or regular flow of non filtered water. With use, the filtered water tastes fresh not filtered. Great product.
Date published: 2017-10-22
Rated 5 out of 5 by from Super Easy Install & Use! We have had the two units for about a month. My son and I installed them without a hitch - just match the colors and use the adapter for hookup. It took 10 minutes to run water until they were operational. Everyone likes the improved taste of the water and the tap is easy enough that my grandkids use it to get their own water. The customer service at Aquasana couldn't have been better. I got a rapid response by email and then a call to tell me I missed the 2for1 offer but that they would send it if I wanted it. No pressure there but excellent service! I'm a believer now!
Date published: 2017-10-21
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Learn More

Aquasana FAQs

  1. Do I have to pay for a plumber to install the system?

    Our countertop drinking water filter system is very easy to install, and it only takes a few minutes to do; no plumber is necessary. If you have any questions or need assistance, our technical support representatives at 866-662-6885 can walk you through the installation process.

  2. How often do I have to replace the cartridges and how much do they cost?

    We recommend replacing the cartridges after six months or 450 gallons, whichever comes first. Replacement filters cost $59.99, but you can save 15%, get free shipping, and extend your product warranty by signing up for our no-contract auto-ship filter replacement program, Water for Life.

  3. Is this purified water?

    No, and actually, purified water is not as healthy as filtered water. Purified water undergoes reverse osmosis or distillation, which strip everything out of your water - not only the contaminants, but also the healthy, natural minerals. Our system uses selective filtration designed to reduce contaminants from the water and leave in the natural healthy minerals like calcium, potassium, and magnesium.

  4. How do I recycle the replacement filters?

    Our company will recycle the filters for you, but we do not cover the shipping cost to return the filters back to us. In reality, the environmental impact of shipping the filters back to us outweighs the good of recycling. To recycle the AQ-4035 drinking filters yourself, remove the ends of the filters, recycle the plastic parts (which are appropriately numbered) and put the carbon either in your compost pile or garden (carbon is good for plant life), or just throw it out (since the carbon degrades quickly, and is a positive component in a landfill).

  5. I'm a renter, so I can't drill or modify the plumbing. Which filter system should I get?

    The countertop system is perfect for renters because it does not require a new hole in the counter. To install an under counter system, you can remove the existing sprayer or soap dispenser in your rental and install our faucet in its place. This option will not damage or permanently modify your plumbing. When you move out, you can easily remove the system and reconnect your plumbing back to normal.

  6. What size adapters do you send with the countertop system (for the diverter hose)?

    13/16 and 15/16 male.

  7. What size is the chrome collar on the countertop system (on the diverter hose)?

    55/64-27 female.

  8. What does TDS mean?

    TDS is the acronym for Total Dissolved Solids, the amount of dissolved minerals and metals present in water. TDS meters tell you the concentration of dissolved minerals and metals, but are not an accurate measurement for contamination. Aquasana products reduce and remove harmful TDS like lead, but selectively retain or replace healthy dissolved solids like calcium, magnesium, and potassium.

  9. What is BPA? And why are people concerned about it?

    BPA stands for Bisphenol-A, a contaminant found in most plastics. BPA can adversely affect your health if consumed at high levels. Aquasana drinking systems do not contain BPA, and our filtration process reduces existing BPA.

  10. Does having hard water mean it is contaminated?

    Hard water is more of a nuisance than a health risk, and is not necessarily contaminated. Most water sources in the USA are considered hard. Hard water is generally safe to drink, after it has been properly treated.

  11. What is soft water, and is it safe to drink?

    Having soft water just means you have a lower concentration of dissolved minerals in the water (primarily calcium and magnesium). Soft water does not mean clean water. Your water can be soft and still contain contaminants.

  12. What is selective filtration, and how do Aquasana systems filter drinking water?

    Selective filtration is the process of sub-micron filtration, micron filtration, adsorption and ion exchange, all of which selectively reduces chemicals, heavy particulates and most dangerous heavy metals from the water while maintaining healthy minerals like calcium, magnesium and potassium.

  13. How do I know if an Aquasana system will be compatible with my faucet?

    The only faucets the AQ-4000 water filtration system will not be compatible with are the 2-in-1 faucets that have a detachable sprayer at the faucet opening. The AQ-4000 will fit most standard faucets and also comes with two adapters. If your faucet happens to be a non-standard size than the hose connection or adapters that come with unit, you can take your aerator to the plumbing section at your local hardware store and have it measured. After you know the size of your aerator, contact technical support with the size and we will see if we carry the right size adapter, and we will send it to you.

Learn More

User Q & A


Asked by: ALEXS1959
It is about the same as a new counter top water filter. When I tried to remove the old filters, I couldn't get them out. Using all the right tolls did not help, I ended throwing it out at buying a new set up.
Answered by: R. Kemp
Date published: 2017-11-20

How long is the hose?

Asked by: Catherine
3 feet, I love this unit
Answered by: Gndma
Date published: 2017-11-20

Can you get replacement hoses for the Countertop Water Filter unit. Mine seems to have one hose which is turning brown.

Asked by: Mississippi Shopper
yes u can
Answered by: mmoe
Date published: 2017-11-12

Does it work with a pull down faucet.

Asked by: Sheel
Not unless it's an old-timey screw off type 
Answered by: John s
Date published: 2017-11-08

I have a new Moen kitchen faucet with internal threads. The size is a junior tom thumb. Will this product fit onto my faucet?

Asked by: ROBERT C
Unfortunately, my own experience has not been positive. I have had difficulty finding a large-enough adaptor for my own faucet.
Answered by: Hallie
Date published: 2017-11-12

would like to know if it reduces water pressure and can it's water line be connect under sink instead of faucet? also what our the price of replacement filters. Does your company offer Disabled Veterans Discounts.

Asked by: Garr
That is an UNDER the counter option
Answered by: Cheryl A
Date published: 2017-10-28

Does the counter top water purifier eliminate chlorine?

Asked by: Kskidmore
Yes, indeed it does. Makes the water safe for drinking, cooking, feeding the pets, watering the plants, humidifier, anything you use water for this will make it all safe, taste better and give peace of mind knowing that everything you pour the filtered water into is gonna be better! I even use Aquasana's shower head filter to take safe showers in. Think about the steam we breath as we shower, the water our skin absorbs, this filter does the same as the countertop filter! Next, I plan on investing in Aquasana's whole home water filtration.
Answered by: byrdman
Date published: 2017-10-26

Does this system work with an all in one pull out faucet?

Asked by: Arc57
I'm not sure since I have the traditional faucet with side sprayer.
Answered by: Sue4995
Date published: 2017-10-16
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