Under Sink Filter Replacement
Claryum® Direct Connect

Replacement cartridge for the Aquasana Claryum® Direct Connect Under Sink Water Filter (Model AQ-MF-1). Replace every 6 months or 784 gallons.

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  • MSRP: 69.99

Save 15% + free shipping with Water for Life $59.49

Questions? We can help

  • 866-662-6885
  • SAT: 9AM–5PM CDT

Pure Performnce

Increase Performance

Use only genuine Aquasana, certified replacements for continued system performance and contaminant removal.

Pure Performance

Easy Filter Replacement

Replacements engineered for ease. No need to disconnect hoses or water lines. Filter housing easily twists off so replacing your filter is a snap!

Pure Performance

Superior Filtration

  • 784 gallons
  • 6 month filter life
  • 1 year warranty
  • 90 day gurantee
certified by IAPMO

Full system tested and certified to NSF/ANSI standards 42, 53, 401, and P473.

How it Works


Maximum contaminants reduced plus healthy minerals retained for purely delicious filtered water.

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

Whole Health

Ultimate Purity

Instantly transform ordinary tap water into clean, extraordinary water.

Our Claryum® Direct Connect filter is independently tested and certified to remove more than 97% of chlorine and chloramines. Also reduces:

  • Heavy metals like lead and mercury
  • "Forever chemicals" PFOA and PFOS
  • Chlorine resistant cysts like giardia and cryptosporidium
  • Organic chemicals like herbicides, pesticides, and VOCs

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

Aquasana filters 10 times more contaminants

Whole Health

Eco Friendly

Designed with the environment in mind, one filter replaces more than 6,250 plastic water bottles.

Pure Performance

Convenience & Value

Claryum® Direct Connect filter gives you 19x the capacity of the leading gravity-based pitcher at only 7.5 cents per gallon with Water for Life®.

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Read the Reviews

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Aquasana FAQs

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

    Our under sink drinking water filter systems are easy to install, and a plumber is not required. If you have any questions or need assistance, please call our Customer Support line at 866-662-6885.

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

    To keep your system working and prevent the growth of bacteria or mold, you should replace your filter every six months or upon reaching the specified gallon capacity, which is 784 gallons for the Claryum® Direct Connect (AQ-MF-1). The filter replacement cost is $69.99, or $59.49 with Water for Life®. Water for Life® is our no-contract filter subscription program that offers 15% off filter replacements, an extended warranty, and free shipping. Learn more here

  3. Is this purified water?

    No, filtered water can be healthier than purified water. Purified water undergoes reverse osmosis or distillation, which strips everything out of your water - not only contaminants, but also healthy, naturally occurring minerals. Our system uses Claryum® selective filtration designed to reduce up to 99% of 77 contaminants while retaining the healthy minerals like calcium, potassium, and magnesium.

  4. What's the micron rating of this filter?

    The Claryum® Direct Connect is designed to filter down to 0.5 microns.

  5. I'm a renter, so I can't drill or modify the plumbing. What should I do?

    Since this system uses your existing faucet, there's no need for any drilling or modified plumbing. Simply attach the system to the cold-water line underneath your sink. It's also easy to remove and take with you to your next apartment or home.

  6. What is the size of the dual port adapter that attaches the water line?

    The dual port adapter supplied with this system fits 3/8" water lines. This is the most common water line size.

  7. Does this system remove fluoride?

    No, the Claryum® Direct Connect does not remove fluoride from your drinking water. If you're looking to remove fluoride, we recommend a reverse osmosis water filter such as the OptimH2O® Reverse Osmosis + Claryum®.

  8. 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.

  9. What is BPA? Should I be 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 found in tap water.

  10. Does having hard water mean it is contaminated?

    Water is considered "hard" when high levels of dissolved minerals are found within its makeup. 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?

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

  12. What is Claryum® Technology and what does it do?

    Claryum® technology is a selective filtration process that uses sub-micron filtration, micron filtration, adsorption, and ion exchange. Together, these technologies reduce up to 99% of 77 contaminants from water while maintaining healthy minerals like calcium, magnesium, and potassium.

  13. What is the difference between the Claryum® Direct Connect and the other under sink drinking systems?

    The Claryum® Direct Connect has the highest flow rate of any Aquasana drinking water filter at 1.5 GPM, while still removing up to 99% of 77 contaminants. It does not require a dedicated faucet, but instead can be used with your existing faucet. Other Aquasana under sink drinking water filters require a dedicated faucet. All of our under sink filters vary based on the number of filter stages used and flow rate. In some cases, the number of contaminants removed varies.

  14. I already have a dedicated faucet in my kitchen. Can I use that with my new Claryum® Direct Connect Water Filter?

    We've designed the Claryum® Direct Connect to give you fast, convenient access to clean, healthy water directly from your existing faucet. Although it's not the designed intent of this system, it can be used with a dedicated faucet. You will be required to separately purchase any parts needed for this type of installation. Unfortunately, we do not supply installation instructions for this type of installation.

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User Q & A

Can this unit also connect to your refrigerators water line for the ice maker?

Asked by: Pooh
Yes, you can have it going to the fridge directly or have it tee-d off, but we always advise that you might have a pressure drop. You can purchase a quick connect fitting from Home Depot or Lowe's, and connect the Tee-fitting to the outlet that goes into the faucet. Unfortunately we cannot make any other recommendations on what to use to connect it to the refrigerator being that our systems are not manufactured to connect with refrigerators/ice makers. If you have any further question contact us at 866-662-6885. Thank you, Aquasana Customer Support
Answered by: Aquasana S
Date published: 2020-07-02

How does this compare to the 3 stage claryum max flow filter system i currently have? Does it filter the water of less contaminants? Or filter less water? Thank you so much. 

Asked by: Frank H
Thank you for reaching out!   We would love to transfer this to a team specialist who is best-suited to answer any questions or concerns you may have.   Kindly email us directly at support@aquasana.com or contact us directly at 866-662-6885, Monday thru Friday from 8am-5pm CST, and weekends from 9am-5pm CST.   Thank you,   Aquasana Support
Answered by: Aquasana S
Date published: 2020-06-30

Does this system take out iron in the water

Asked by: Debby lee
Hello ,   Thank you for contacting us and your interest in Aquasana! However, unfortunately our Whole House Well Water System does not reduce nor remove iron/sulfur. Please let me know if I can further assist. Thank you, Aquasana Customer Support
Answered by: Aquasana S
Date published: 2020-06-30

What is the difference in filtration quality between this one and the coutnertop filter? (AQ-4000) As far as I can tell, the only difference is retaining minerals but exact same filter quality. No Fluoride filtration, etc.

Asked by: J. T.
Thank you for reaching out! We would love to transfer this to a team specialist who is best-suited to answer any questions or concerns you may have.   Kindly email us directly at support@aquasana.com or contact us directly at 866-662-6885, Monday thru Friday from 8am-6pm CST, and weekends from 9am-5pm CST.   Thank you,   Aquasana Suppor
Answered by: Aquasana S
Date published: 2020-06-30

Does it remove arsenic? 

Asked by: Gus Z.
Hello,   Thank your for your interest in Aquasana. The Whole Home system does not remove fluoride or arsenic. Both require Reverse Osmosis to be removed/reduced from water. We do offer a Point of Use Reverse Osmosis for your drinking water, and many of our Whole Home customers purchase it in combination.   You may read more about our Reverse Osmosis system at: https://www.aquasana.com/drinking-water-filter-systems/reverse-osmosis-claryum If you are interested in a system, please call 866.662.6885 or e-mail sales@aquasana.com and a representative will be happy to discuss your needs and options.   Thank you,   Aquasana Support  
Answered by: Aquasana S
Date published: 2020-06-17

Does this filter remove iron from well water?

Asked by: MudGuy
Thank you for your question. Unfortunately Aquasana Whole Home System will not help to reduce nor remove iron from your drinking water. To speak to a water specialist regarding any iron questions or concerns please contact our whole home specialist at Toll Free 866-662-6885.   Thank you,   Aquasana Support  
Answered by: Aquasana S
Date published: 2020-06-11

Hi! I hope you all are well. I hadn't seen this version of the under sink filter. Does it do the 3 stages of filtration or just one? I mean does it have 3 filters to replace or just the one? Can it be installed in a bathroom vanity? Thank you.

Asked by: Anonymous
I has just the one filter to replace Yes, it can be installed in a bathroom - or on any other cold water line.
Answered by: Water2020
Date published: 2020-06-11

I have a counter top filter system now how does this under sink model match up as far a filtering the water?

Asked by: Bills
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