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: Brushed Nickel
  • all-metal brushed nickel faucet
  • all-metal chrome faucet
  • oil rubbed bronze faucet
2-Stage Under Counter Water Filter - Brushed Nickel is rated 4.5 out of 5 by 818.
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50% OFF 2-STAGE UNDER COUNTER SYSTEMS until Apr 30
  • MSRP: 199.99
  • Sale: 99.99

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

Questions? We can help

  • 866-662-6885
  • MON–FRI: 8AM–6PM CDT
  • SAT: 9AM–5PM CDT

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 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
Rated 5 out of 5 by from Great product! I bought this product recently and I’m very happy about it
Date published: 2018-04-22
Rated 5 out of 5 by from Water taste great! Unit was easy to install after watching the online instruction video. Good value for the money.
Date published: 2018-04-22
Rated 5 out of 5 by from Excellent! My grandson installed it for us and we are happy with it. It replaces the filter system that was part of our old refrigerator.
Date published: 2018-04-13
Rated 5 out of 5 by from Water Taste Great My husband recently installed the under counter filter system in this house. Wish we had done this before now. Had it in a previous home. Water tastes great and the convenience of filling up pots with filtered water is easy and economical.
Date published: 2018-04-12
Rated 5 out of 5 by from Very Happy Water for Life customer! I have owned both on counter older Claryum systems and a few under the counter 2-stage systems(different houses) Other than a leaky older model pre-2007, these things have been fantastic. (Aquasana replaced that unit for me with newer tubes) My family is very sensitive to taste and smell despite living in three different house/towns with different treated water (municipal, town aquifer, and reservoir), and prior to Aquasana use we could detect chlorine. The children use a counter model for teeth brushing and the kitchen we use for drinking water and cooking. We have been Water for Life customers since about 2008.
Date published: 2018-04-09
Rated 5 out of 5 by from Great Unit This new 2 Stage Unit is just what I was hoping for a big improvement of my older model! The customer service people at Aquasanna are the best, answering and satisfying any and all of my concerns. Just a great unit that I would highly recommend.
Date published: 2018-04-07
Rated 5 out of 5 by from Bought for my son as a birthday gift My son really likes the water in our home, we have a Aquasana Whole House System and thought he would like to have the same GREAT tasting water we enjoy.
Date published: 2018-04-05
Rated 5 out of 5 by from Great Taste Included Been using this filter along with the Water-For-Life subscription since at least 2007. Not only does the filter do a great job and the water tastes great but Aquasana also has great customer service. After about 4-5 years of service the original mounting base developed a small crack and leaked. A call to customer support got me a new redesigned unit along with new filters for the new design, all within just a couple days of the problem. Thanks Aquasana, highly recommend your products and service.
Date published: 2018-04-01
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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 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. The AQ-5300+ also contains Bluetooth connectivity so you can download our iPhone App and get alerts for when it is time to change your cartridges and even order new replacements straight from the App!

  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 to 800 gallons, a 44% increase in flow rate at .72 gallons per minute and Bluetooth connectivity for filter tracking.

  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 include filter or do I need to buy separately? I know I will have to change it eventually. But for the first buy does the filter come included? 

Asked by: Naty
yes, a complete package to start using the system.
Answered by: outfishing
Date published: 2018-04-23

Let me ask you: IF I buy the 2 replacement Filters to be changed after 6 months.... what IS the meaning of Water FOR life getting THEM in a lower Price?... 

Asked by: Pipo.
Water for Life is a contract-free, no obligation replacement cartridge auto-ship program. Sign up is free of charge and you can cancel at anytime. Water for Life ensures you get the best discounts on replacement cartridges, free shipping on Water for Life product purchases, and an extended warranty. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-04-06

How can we stop the shipment of replacement batteries with the filter? Its wasteful to replace every 6 months and can easily be replaced locally once it runs out. I left the same one in for over a year and had NO issues

Asked by: scottr
Please contact our service team at 866.662.6885 and a member of our Service Team will be glad to further assist with your request. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-04-05

I have the 2 stage system under my kitchen sink but the faucet has started leaking. I don't see a replacement faucet available on your site and can't find another online that has the 3 hoses coming from it. How do I get a replacement?

Asked by: LBHall
We currently do not offer replacement parts through our website. Please contact our service team at 866.662.6885 and a member of the team will be glad to provide further assistance. Thank you, Aquasana Customer Support
Answered by: Aquasana Customer Support
Date published: 2018-04-06

After installing my new 5200 I let the water run for several minutes to "flush" the cartridges. I still get "cloudy" water though. Is there a way to purge air from the unit which would also increase flow rate?

Asked by: WHRIII
We did not have this problem with our filter. We also had the "on the counter" model for years and did not have any issues after running the water for 10 minutes. We're filtering public water so I don't know if that makes any difference.
Answered by: cjstauffer
Date published: 2018-04-03

HOW much IS the Price of two Filters?

Asked by: Pipo.
Around $59.00 before tax , two filters and a battery
Answered by: outfishing
Date published: 2018-03-29

How is the flow? Does it dribble out like a Pur? I’m looking for a unit able to fill a 2 liter bottle fast enough to geterdone. Thank you 

Asked by: Steve 47
About 1/2 lt in 20 seconds. Yes, slow but not a dribble.
Answered by: Genem
Date published: 2018-03-14

Is the faucet designed so that it may be installed in the opening that exists for the air vent or must a separate hole be drilled for the faucet?

Asked by: Gerry N
The faucet doesn't have an air vent so I had a seperate hole drilled for the faucet.
Answered by: Martyy
Date published: 2018-02-27
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