Drinking Water Filter
2-stage Under Counter

Designed to be the best performing drinking water filter on the market.

5300 water filter

Get 100 gallons more plus a pre-filter with our 3-stage filter Shop Now

Select a faucet finish: Chrome
  • all-metal brushed nickel faucet
  • all-metal chrome faucet
  • oil rubbed bronze faucet
2-Stage Under Counter Water Filter - Chrome is rated 4.5 out of 5 by 873.
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50% OFF 2-STAGE UNDER COUNTERS WITH WATER FOR LIFE - limited time!
  • MSRP: 199.99
  • Sale: 129.99

Save 50% + free shipping with Water for Life $99.99

Questions? We can help

  • 866-662-6885
  • MON–FRI: 8AM–7PM CST
  • SAT: 9AM–5PM CST

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

Easiest filter Replacement

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

Pure Performance

Convenience & Value

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

One Aquasana Claryum® filter gives you 12x the capacity of the leading gravity-based pitcher at only 10¢ per gallon with Water for Life.

Pure Performance

A Smarter System

The Aquasana AQ-5200 alerts you when it's time to change your filters. No more guessing if and when you need to replace your old filters.

Pure Performance

Stylish
Designer Faucet

Match your kitchen d├ęcor with a designer faucet featuring all metal construction.

How It Works

Superior Filtration

Selective Claryum® Filtration

Reduces 77 contaminants while retaining beneficial minerals for optimal hydration.

Easy to install, replace & maintain

Filter lasts up to 6 months and features easy twist-off design.

certified by NSF

NSF Certified

Full system tested and certified to NSF/ANSI Standards 42, 53, 401 + P473 for the claims specified on the Performance Data Sheet.

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

Help & Support

Video Help

  • How to install the 2-stage under counter system
  • How to replace the 3 AQ-5200 under counter filters

Installing the 2-stage water filter

Replacing the AQ-5200's filters

Learn More

Read the Reviews

Rated 5 out of 5 by from Easy to install, wonderful to drink! I'm so pleased I made this purchase, I couldn't have asked for a better experience. Love my water!
Date published: 2019-09-11
Rated 5 out of 5 by from Great tasting safe drinking water Installation was easy. I used the existing hole in my granite where my soap dispenser was. It's a cute little spout that does the trick of giving us better water. I don't miss buying gallons of spring water! Tastes as good! Perfect for what we needed.
Date published: 2019-09-09
Rated 5 out of 5 by from Overall impression of my new filter All is good...take my time with the install. No leaks on initial turn on. So, this initial review is all good.
Date published: 2019-08-31
Rated 5 out of 5 by from Great water flow easy to install This was a replacement unit for one that I had installed 10 years ago and was dissatisfied with water flow. The new one was easy to install, water tastes fine and water flow rate is greay
Date published: 2019-08-31
Rated 5 out of 5 by from Easy to install, water tastes great Installation is quite easy, but that totally depends on your sink configuration. Resulting water tastes great, and we were pleased to get the extra counter space by eliminating our counter-top machine. Water throughput is somewhat less than a refrigerator dispenser, but not a deal breaker for us.
Date published: 2019-08-28
Rated 5 out of 5 by from 2-Stage Under Counter Water Filter We love the new unit. We were happy with the 15 yo Aquasana 2-stage filter we had and thus replaces it with the new model, Love the new model, works as well and easier to change the filters.
Date published: 2019-08-22
Rated 5 out of 5 by from Easier Install Than Anticipated! I am not the handiest person (I am a computer programmer by trade) so my father was going to install the system for me, but in the interim, I decided to give it a shot and was surprised how easy it was. It took me about 2 hours, but given my general lack of expertise with tools and plumbing, I was very happy and impressed I was able to pull it off. The instructions were very straightforward and the logic of the system is not complex. The system runs beautifully and I'm really happy with it. The waterflow is faster than the counter-top units and the water tastes just as good or better. If you haven't tried Aquasana water, it is far better than Brita or Pur-- it turns municipal water into better-tasting water than most wells (in my experience). Awesome product that nearly anyone can install themselves!
Date published: 2019-06-01
Rated 5 out of 5 by from So far works great I ordered the 2 stage under counter filter after talking to a salesperson who was helpful. Package arrived about a week later and had all the necessary components. Installation was straightforward following the video instructions. Hardest part was drilling a .50” dia hole in our quartz countertop but youtube videos helped with that part. Connecting to the water supply went smoothly with no leaks. Water flow rate isn’t great but more than adequate for our needs. The 3 stage would have a higher flow rate but more difficult to fit under our sink. We have using the filter for about a month and it has been great.
Date published: 2019-04-24
Rated 5 out of 5 by from Perfect for my needs! Straightforward, easy install for a separate drinking water faucet at the kitchen sink. Filter assembly fit perfectly in the space available, and provided tubing was enough to get the filter out close enough for easy filter changes. Very happy with the filter and service. Excellent product info and support available on website.
Date published: 2019-04-02
Rated 5 out of 5 by from Easy to install We have enjoyed our new Aquasana water filter system. Our local water often had high chlorination levels which really affected the taste of our water. Our filtered water tastes fantastic.
Date published: 2019-02-26
Rated 5 out of 5 by from Clean water at my sink. I am enjoying the clean water in my kitchen. We now do all our coffee, tea, soup, and pasta boiling with clean water from our Aquasana filter. It was so easy to install. Just followed the directions. My wife really likes it.
Date published: 2019-02-25
Rated 5 out of 5 by from Love this filter and company We used a filter that cost 6x this price prior to buying this one and it was really not that much better so when it broke down we looked for a better solution at a better price. We've been using Aquasna for many years now. The Company has always stood behind their products. We upgraded to this new system when it came out about 3 years ago and it's super easy to change the filters. Love the water for life program as it takes the thinking out of it and the added discount makes it a no brainer. The water tastes great and we wouldn't be without it. We've referred several friends who have bought one since we got ours. :)
Date published: 2019-02-11
Rated 5 out of 5 by from So far, so good Haven't had it installed a long time but like the small faucet that allows use of the regular faucet while getting water. Have used a filter for a long time, so can't speak to a difference in taste, but definitely like the convenience of this vs a faucet mount filter that needs more frequent replacement
Date published: 2018-12-31
Rated 5 out of 5 by from Easy We replaced our previous aquasana counter water filter with this newer model. The handle works much better and the filter system is much more user friendly. We love it and it’s used A LOT between drinking water, humidifier water and now the dog has been prescribed to be on filtered water due to a kidney condition
Date published: 2018-12-30
Rated 5 out of 5 by from Aquasana filter: nice The filter init was delivered on time; fairly easy to install and is working fine. It fits into the overall scheme of the sink/counter/ kitchen very nicely.
Date published: 2018-12-23
Rated 5 out of 5 by from great tasting water two stage under counter water filter is excellent product and filters water as advertised and as recommended on many reviews. easy install.
Date published: 2018-12-05
Rated 5 out of 5 by from Overall impression of our Aquasana Our water tastes great! We love our Aquasana water filter!!
Date published: 2018-11-20
Rated 5 out of 5 by from Aquasana a very nice product. Fits perfect under my kitchen counter.Faucet looks great.Water taste wonderful ,no odor.
Date published: 2018-11-02
Rated 5 out of 5 by from Great filter system We have been using the Aquasana 2-stage filter system for over 8 years. The water quality and taste has been outstanding. We are water for life subscribers which is a good value, we receive new filters every six months at a fair price. We would always forget to replace them, now that's not a problem. Over the years they have improved the filter installation process and have made it so easy, I never have a leak. As water for life subscribers, if any part of the system fails they will replace it free of charge. The only failure I've had was the faucet. The new faucet doesn't appear to be the same quality as the old one, which was disappointing. Overall I recommend the filter system because of the water quality and taste.
Date published: 2018-09-27
Rated 5 out of 5 by from Works fantastic, easy to install and looks great! My husband is the one who wanted it. I didn't think our water was that bad. But, he was told our town's water was heavily chlorinated and it was important to him. We purchased the two stage filter system. It was easy to install and looks like a matched set to our faucet. I was shocked at the difference in the taste of the water. It really made a difference. Now I can't imagine drinking the water straight from the tap! We also opted for the auto-ship of the new filters and would recommend doing so. It's really convenient.
Date published: 2018-05-29
Rated 5 out of 5 by from We have been extremely impressed! This is my third 2-stage under counter water filter from Aquasana! Installation was a breeze and the results as always have been absolutely fantastic.
Date published: 2018-05-29
Rated 5 out of 5 by from Very nice looking faucet, and filter system We’re really using the new filtered water system a lot more than the sink one. I used to get my water from there till recently, now I don’t want regular water anymore. It’s not tasteful anymore. Can’t believe I used to drink that. Now my coffee and tea are even better. It was easy to install, all the parts you needed came with the kit. I’m glad I spent the money on this water filter system. Because I was tired of buying bottles and jugs of water. Now I can Just open up the valve when I want great water.
Date published: 2018-05-23
Rated 5 out of 5 by from Better Than Expected We bought this system with a bit of skepticism - we hadn't heard of Aquasana until we started shopping for an under-counter filter system, and the price was very cheap compared to other systems we were looking at. We figured we'd get what we paid for, but I have to say this system is great. We're now five years in and we've never had a leak, the system works perfectly and changing the filters is pretty easy. The water tastes great, markedly better than the tap. The filters are pricey but not outrageous. We are glad to have found Aquasana and have purchased their other products for family members, who are also impressed.
Date published: 2018-05-23
Rated 5 out of 5 by from Great water! We have had our Aquasana about two weeks now. We love it! The water taste great, the installation was a breeze and it shipped to us very quickly. I installed it myself - just follow the directions! It was a great addition to our kitchen.
Date published: 2018-05-15
Rated 5 out of 5 by from two stage filter The filter arrived promptly and was easy to install. We're enjoying all of benefits of having this filter in our house.
Date published: 2018-05-10
Rated 5 out of 5 by from Significant Improvement Over Previous Model The model was easy to install. Filter change is simple and easy. Flow rate is higher than the previous model. Water taste and quality is always very good. Aquasana is the best system I have ever used.
Date published: 2018-05-07
Rated 5 out of 5 by from Easy to install, great performance value Easy to install and looks great! This is my third Aquasana product in ten years and very happy with the performance. A little worried with the filter alarm as my water is quite good a;d I usually get more than six months performance on a set of filters. Hope that thing is not buzzing at six months.
Date published: 2018-05-04
Rated 5 out of 5 by from Very pleased Great taste and easy installation. Overall very happy and will definitely recommend it.
Date published: 2018-05-01
Rated 5 out of 5 by from THE BEST SOLUTION IN FILTERS. THE INSTALATION WAS GREAT AND EASY. ITS USE WONDERFUL AND THE TASTE OF WATER GORGEOUS. THANKS AQUASANA.
Date published: 2018-04-23
Rated 5 out of 5 by from Just like advertised! 2-stage system was simple to install even for the non-plumber like myself. Water is definitely better tasting than the straight city water. Amazing improvement
Date published: 2018-04-22
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Learn More

Aquasana FAQs

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

    Our under counter drinking water filter systems are 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 (three months for the single-stage system) or the specified gallon capacity to prevent the growth of bacteria in the system. The AQ-5100 Single Stage has a capacity of 200 gallons, the AQ-5200 Two-Stage has a capacity of 500 gallons, the AQ-5300 Three-Stage has a capacity of 600 gallons and the AQ-5300+ Three-Stage has a capacity of 800 gallons. Replacement filters cost $29.99 for the AQ-5100, $59.99 for the AQ-5200, $64.99 for the AQ-5300 or $79.99 for the AQ-5300+, 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. The performance indicating device on the AQ-5200, AQ-5300 and AQ-5300+ systems will sound a beeping alarm and flash red when it is time to change your cartridges.

  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?

    We have designed this system to minimize the environmental impact of our replacement elements, which are over 95% biodegradable carbon. 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 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. What should I do?

    To install an under counter system, you can remove the existing sprayer or soap dispenser on your sink 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. If you do not have an existing hole in your sink from a sprayer or soap dispenser, we also have a countertop drinking water filter that conveniently screws on to most kitchen faucets.

  6. What is the size of the brass T-fitting for under counter and premium under counter unit?

    The most common size is 3/8" which originally comes with the system purchase. In rare cases some customers may need a 1/2" T-fitting which is sold separately and is available for purchase through technical support.

  7. What size hole do I need in my sink for the under counter and premium under counter systems?

    The faucet that is included with our systems requires a 1/2" hole.

  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. What is the difference between the single-stage, 2-stage and 3-stage under counter systems?

    All of our drinking water systems use the same Aquasana Claryum® filtration technology. The single-stage system lasts 6 months or 200 gallons before the cartridges need to be replaced. Our 2- Stage system has a higher capacity than the single-stage, giving you 6 months or 500 gallons of clean, filtered water. The 3-Stage system includes a 20 micron pre-filter before the two Aquasana Claryum® filters. This pre-filter increases the capacity of the system from 500 gallons to 600 gallons. In addition, it improves flow rate in high sediment areas. The 3-Stage Max Flow system adds even more capacity for 800 gallons of filter life and a 44% increase in flow rate at .72 gallons per minute.

  14. I have an existing side faucet from a previous system. Can I use that with my new Aquasana water filter?

    We recommend that you use the faucet provided. We have extensively tested the system with the faucets included. The faucets are NSF Certified to have no lead content. In addition, they will not impart any unwanted chemicals into your water. If you choose to use another faucet, we recommend that you have a plumber install the system to ensure no leakage occurs. We also recommend that you install an NSF Certified faucet to ensure the health benefits of your new Aquasana water filter.

Learn More

User Q & A

Does this filter flouride?

Asked by: Mindy
Hello,   Thank your for your interest in Aquasana. The system does not remove fluoride or arsenic. Both require Reverse Osmosis to be removed/reduced from water. 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: 2020-02-10

does this system take out nitrates?

Asked by: Johnzona
It's a good question. Why ask me instead of Aquasana simply answering it?
Answered by: Fritz
Date published: 2020-02-09

Does the unit include the filters?

Asked by: Chlorine hater
yes but the filters need to be replaced every 6 months and they cost about 60 dollars for both
Answered by: lindaaqua
Date published: 2020-01-22

Can I order new water faucet for the two stage water filter system?

Asked by: Clean water in Chester
Yes you can by calling sales. I've done it twice because after about a year and a half the faucet leaks/drips out of the faucet-end real bad. I'm on my 3rd one. If yours is still under warranty (I think 2 yrs w/WFL subscription) the faucet kit is covered, but you have to pay the $5 shipping.
Answered by: dreager
Date published: 2020-01-15

How do I get a replacement sump for a AQ-5200.55? One of mine just broke and is now unusable. Thanks. 

Asked by: Shetty
Hello, Hello,   It appears you have several questions that would best be answered by a consultation with one of our experts over the phone.  Please call our technical support department at 866-662-6885, to discuss a potential solution for your home.    Thank you,   Aquasana Support   
Answered by: Aquasana S
Date published: 2019-12-04

Can you provide a list of installers in my area?

Asked by: OUAmy
We are the manufacturer and distributor but we do not have installation technicians in the field. We do work with a network of plumbers across the US who are familiar with and/or certified to install our systems. If you would like to know if there is anyone in your area, please reply to our email at Support@aquasana.com with your city, state, and zip code.   We look forward to hearing from you!   Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-11-25

I'd like to buy a 2 or 3 stage water filter for my son who lives in Amsterdam, Nederlands. I'm not sure if they have different standards there for pipes and fittings and whether you sell water filters to fit their standards. Thanks,

Asked by: Ramiz
Hello, It appears you have several questions that would best be answered by a consultation with one of our experts over the phone. Please call our sales department at 866-662-6885, options 1 and 1 to discuss a potential solution for your home. Thank you, Aquasana Support
Answered by: Aquasana S
Date published: 2019-11-07

I have already have a three stage water filter under the sink. My current water filter attached to my refrigerator ice maker. Can I hook your system to my refrigerator ice maker? thx

Asked by: Sadiqa
I wouldn't. I have a two stage under sink. When I replaced an earlier version of the two stage, I tried leaving the existing hoses and faucet, just replacing the filter assembly. The volume of water out was half what it should be, but when I replaced all the hoses and faucet everything was fine. I know this isn't a direct comparison for you, but it seems as if the units are built expressly for their original purpose. Of course, you could always experiment, as long as it would be easy to go back. We just use the filter which is inside our refrigerator. It works fine.
Answered by: SierraFred
Date published: 2019-10-31
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