Claryum® Countertop Filter Replacements

4.2 out of 5 Customer Rating

Replacement filters for Aquasana's Claryum® Countertop to reduce harmful contaminants, including chlorine, lead, and more.

  • In Stock
100236133 AQ-4035
Water for Life® Price
$50.99 15% OFF + Free Shipping!
This filter set replaces the filters in the Claryum® Countertop water filter (AQ-4000).

Genuine Aquasana Replacements

Water You Can Trust

Water You Can Trust

Genuine, certified Aquasana replacements are WQA tested and certified to NSF/ANSI Standards 42, 53 (includes P473), and 401.

Peace of Mind

Peace of Mind

Get clean, healthy water straight from the tap by reducing contaminants including lead, PFOA/PFOS, cysts, chlorine, pesticides, and more.

Value & Convenience

Value & Convenience

More clean, great-tasting water filtered at the most economical cost per gallon. Save money and time with fewer filter replacements.

Innovative Technology
Claryum® Technology
Four different methods of advanced filtration work together to remove 15X more contaminants than the leading pitcher filter.
Easy Filter Replacements
Expertly engineered for easy replacement. No need to disconnect hoses or water lines - simply twist off and replace.
Minimal disposable plastic parts and no more single-use plastic bottles. Make a difference with this sustainable, eco-friendly solution.

These replacements come with a 180-Day Limited Warranty and a 90-Day Satisfaction Guarantee so you can be confident in your purchase.

WQA tested and certified to NSF/ANSI Standards 42, 53, and 401 for the claims specified on the Performance Data Sheet.

Pure Performance

This filter removes up to:
Chlorine, Chloramine
Cysts, Lead, VOCs, Asbestos
Mercury, PFOS/PFOA

The Claryum® Countertop Filter Replacement set replaces filters in the Aquasana Claryum® Countertop (AQ-4000) and lasts for 450 gallons or up to 6 months. This filter set also replaces filters in the following systems: AQ-4500, AQ-4501, AQ-4600, and AQ-4601.

Aquasana's Claryum® filtration technology is tested and certified to NSF/ANSI standards 42, 53 (includes P473), and 401 for the reduction of over 97% of chlorine and chloramines, 99% of lead, and 96% of PFOA/PFOS. It's also certified to reduce mercury, chlorine-resistant cysts, herbicides, pesticides, VOCs, pharmaceuticals, and more. In all, it tackles 15X more contaminants than the leading pitcher filter.

Replacement includes two powerful filters, combining activated and catalytic carbon with ion-exchange and sub-micron filtration for premium water filtration. These filters are intelligently designed with the environment in mind, with minimal plastic parts for reduced plastic waste.

Claryum® selective filtration technology retains naturally occurring beneficial minerals found in water like calcium, potassium, and magnesium for healthier, more delicious water.

Gallons Filtered:
450 gallons
Filter Life:
6 months
replacement filter

Claryum® Countertop

Instantly transform your tap water into clean, great-tasting water with no installation or permanent fixtures.

Help & Support
  • AQ-4000W Replace video image 2
    How to Replace the Filters in the Claryum® Countertop
  • AQ-4000W Product Video video image 2
    Claryum® Countertop Product Video
video main image play icon
Claryum® Countertop Filter Replacements
replacement filter

Need a water filter?

Water filters are an effective way to provide your household with healthy, great-tasting water. Remove up to 99% of 78 contaminants including lead, chlorine, PFOA/PFOS, and more.

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Get filters auto-delivered right when you need them — plus receive 15% off the price of replacement filters, free shipping, and an extended limited warranty on your filtration system. Protect your investment and save money with our no-contract Water for Life® program.

Ratings & Reviews
Customer Q&A
Aquasana FAQs
1. Do I have to have a plumber replace the filters?
Our countertop drinking water filter system is designed for easy replacements, 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 877-996-2875 can guide you through the installation process. Or, follow along with our helpful replacement video.
We recommend replacing the cartridges after 6 months or 450 gallons, whichever comes first.
To eliminate the hassle of remembering when to change your water filter, sign up for our auto-ship program, Water for Life®. Our no-contract program saves you 15% on filters, includes free shipping, extends your filter warranty.
Due to the nature of the carbon block's assembly and the contents of a used filter, the filters cannot be recycled.
Claryum® technology is a selective filtration process that uses ion-exchange, absolute sub-micron mechanical filtration, catalytic carbon, and activated carbon. Together, these technologies reduce contaminants while maintaining healthy minerals like calcium, magnesium, and potassium.
No, this is not purified water, it is filtered water. Purified water undergoes reverse osmosis or distillation, which strips 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.
TDS, or Total Dissolved Solids, is 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. Read more about TDS here.
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.
No, hard water is not always considered contaminated. Most water sources in the USA are considered hard.
Hard water can be city water or well water meaning it may or may not be pre-treated. The minerals that make water "hard" are not considered contaminants, but hard water can still contain additional contaminants that are not safe for consumption.
Soft water is water that has either been treated by a water softener or naturally contains less hard minerals. The most recognizable trait of "soft" water is how much more soap lathers, as opposed to hard water.  Soap lathers less due to the higher concentration of minerals. Water softeners reduce the negative effects of dissolved minerals in water that can clump together and produce scale buildup.
Soft water does not mean clean water. Your water can be soft and still have contaminants present in the water.
Yes, soft water is considered potable. Drinking water from a sodium-based softener increases your daily intake of sodium, which can lead to health problems in sodium-sensitive individuals. Please keep in mind that a water softener is not a water filter. A water softener does not remove contaminants present in your water.