






Claryum® Countertop Filter Replacements
Replacement filters for Aquasana’s Claryum® Countertop to reduce 77 harmful contaminants, including 97% of chlorine
15X
FILTERS 15X MORE CONTAMINANTS THAN THE LEADING PITCHER FILTER
Availability:
-
In Stock
100236133
AQ-4035

This filter set replaces the filters in the Claryum® Countertop water filter (AQ-4000).
Genuine Aquasana Replacements

Water You Can Trust
Genuine, certified Aquasana replacements are NSF tested and certified to NSF/ANSI Standards 42, 53, and 401.

Peace of Mind
Get clean, healthy water straight from the tap by reducing 77 contaminants including lead, PFOA/PFOS, cysts, chlorine, pesticides, and more.

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.

Eco-Friendly
Minimal disposable plastic parts and no more single-use plastic bottles. Make a difference with this sustainable, eco-friendly solution.
77
Contaminants
Removes up to 99% of 77 contaminants.

Tested and Certified to NSF/ANSI Standards 42, 53, and 401 for the claims specified on the Performance Data Sheet.
- Filters 450 gallons or up to 6 months*
* Capacity depends on water quality and usage.
Pure Performance
This filter removes up to:
97%
Chlorine, Chloramine
99%
Cysts, Lead, VOCs, Asbestos
96%
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, 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

Claryum® Countertop
Instantly transform your tap water into clean, great-tasting water with no installation or permanent fixtures.
Help & Support
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How to Replace the Filters in the Claryum® Countertop
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Claryum® Countertop Product Video
Claryum® Countertop Filter Replacements
Water filters are an effective way to provide your household with healthy, great-tasting water. Remove up to 99% of 77 contaminants including lead, chlorine, PFOA/PFOS, and more.

Get filters auto-delivered right when you need them – plus receive 15% off the price of the replacement filters, free shipping, and an extended warranty on your filtration system. Our no-contract Water for Life® program makes filter replacements simple and cost-effective!
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.
2. How often do the filters need to be replaced?
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.
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.
3. How do I recycle the replacement filters?
Due to the nature of the carbon block's assembly and the contents of a used filter, the filters cannot be recycled.
4. What is Claryum® technology and what does it do?
Claryum® technology is a selective filtration process that uses sub-micron filtration, micron filtration, and adsorption. Together, these technologies reduce up to 99% of 77 contaminants from water while maintaining healthy minerals like calcium, magnesium, and potassium.
5. Is this purified water?
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.
6. What does TDS mean?
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.
7. What is BPA? 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.
8. Does having hard water mean it is contaminated?
No, hard water is not always considered contaminated. Most water sources in the USA are considered hard.
9. Is hard water safe to drink?
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.
10. What is soft water and how do I know if my home has it?
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.
11. Does having soft water mean it is clean water?
Soft water does not mean clean water. Your water can be soft and still have contaminants present in the water.
12. Is soft water safe to drink?
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.