4 Best Under Sink Water Filters Of 2020 For Your Home

If you want to save yourself and your family from any kind of water-borne diseases, then investing in a good quality under sink water filter is one of the best things you should do. It will not only eliminate all the harmful bacteria from the water but it will restore the vitamins and minerals found in it.

The only problem is that there are many companies out there that sell them and it can be confusing to choose the best one. So to help you get the best deal, I have made a list of the 4 best under sink water filter systems. To know more about the products, keep reading this article.

Top 4 Under Sink Water Filters

Which Water Filter Removes The Most Contaminants?

After months of testing and researching, I’ve compiled a list of 4 best water filters for under the sink. I’ll begin with my top choice:

To see which one removes the most contaminants, read all reviews in detail.

Aquasana Claryum Under Sink Water Filter 3-Stage Max Flow

This Aquasana AQ-5300+ Under Sink Water Filtration System is one of the best under sink water filtration systems currently available on the market.

It comes with 3-Stage selective Claryum® filtration, which helps in removing/reducing 77 different contaminants. The best thing about this water filter is that it balances the water minerals (like Calcium, Potassium, and Magnesium) and makes the water healthier to consume.

These features are not the reasons why I recommend this under sink filter to everyone.

It eliminates most harmful contaminants like:

  1. Pharmaceuticals like estrone and ibuprofen
  2. Herbicides
  3. Pesticides
  4. VOCs
  5. MTBE
  6. Chlorine
  7. Chloramines
  8. Heavy metals like lead and mercury
  9. Asbestos
  10. Cysts like cryptosporidium and giardia

This water filter comes with 3 filters that remove the large contaminants mentioned above. And for removing things that also destroy your pipes and clog your system (like rust, sediment, and silt), a 20-micron pre-filter is included.

Another bonus this pre-filter has is increasing the life capacity of the filtration system to 800 gallons. A family of five can drink healthy delicious water for about 11 months – that’s almost a year.

The system will alert you when it’s time to change the filters. No more running tabs on how much water you’ve filtered.

With this water purifier, you will get all the necessary parts and instruction manual, which makes it very easy to install. You won’t need any help and you can easily do it by yourself.

Replacing the filters is a breeze. You just unscrew the housing, throw out the old filter, and place the new one in. You don’t even need to disconnect the waterline.

  • It is easy to install
  • 3-stage water filtering system provides super clean water
  • It comes with a stylish designer metal faucet
  • NSF certified
  • High filter capacity
  • Reduces 77 contaminants while retaining beneficial minerals for optimal hydration
  • Slow water flow
See Reviews

Aquasana Claryum Under Sink Water Filter 3-Stage

This Aquasana AQ-5300 is the compact version of the 3-stage Max Flow filtration system reviewed above. The only difference is the smaller size. Because of this, the filter capacity is reduced by 200 gallons, to 600.

This one is perfect for small offices, homes, dorms, and other places where under counter space is at a premium.

Just because it’s smaller that doesn’t mean it’s less capable of removing unwanted contaminants. It is just as good as removing them as the AQ-5300+.

The system is even easier to install because of its smaller size and weight. The filters are just as easy to replace, too. A few twists of your wrists and you’re done. No tools needed.

All in all, if you looking for a high-quality, well-designed under-sink water filtration system, then this water purifier from Aquasana is one of the best options for you.

  • It is easy to install
  • 3-stage water filtering system provides super clean water
  • It comes with a stylish designer metal faucet
  • NSF certified
  • High filter capacity
  • Reduces 77 contaminants while retaining beneficial minerals for optimal hydration
  • Slow water flow
See Reviews

Aquasana Claryum Under Sink Water Filter 2-Stage

Is your water contaminated just a little? Then this AQ-5200, a 2-stage under sink water filtration system from Aquasana, is the perfect pick for you and other people who live in a place where their tap water is contaminated in little amounts.

It features a simple classic look that will suit all types of decors. This one is even smaller than the previous one, takes up even less space, and weighs less.

Despite its small stature, it is still very effective in reducing:

  1. Chlorine taste
  2. Turbidity
  3. Lead
  4. Smells
  5. Heavy metals
  6. Cysts

etc. This under sink water purifier comes with the next filtration methods:

  1. Advanced carbon and catalytic carbon
  2. Ion-exchange
  3. Absolute Sub-Micron

just like the two larger siblings above.

The filters are capable of filtering 500 gallons of water. It may seem not much but for its size and the number of filters, that’s a lot.

The best thing about this water purifier is that it’s so small you won’t even notice it. Even if you have a small cabinet, you’ll still have plenty of space.

  • It is easy to install
  • 2-stage water filtering system provides super clean water
  • It comes with a stylish designer metal faucet
  • NSF certified
  • High filter capacity
  • Reduces 77 contaminants while retaining beneficial minerals for optimal hydration
  • Very small
  • Slow water flow
  • You’ll need to replace filters quite often if you have a large family
See Reviews

Propur Dual Stage Undersink System w/Promax

This 100% made-in-USA under sink water filter system from Propur is made of premium quality materials, which makes it very durable and long-lasting. It comes with a designer faucet and high-grade quality fittings for more safety.

The 2-stage filter design includes:

  1. Stage: a 5-Micron pleated pre-sediment filter which helps protect your new Propur® filtration system from sediments commonly found in aging water supply pipes
  2. Stage: ProMax™ “all-in-one” filter technology

The best thing about this water filtration system is that it reduces/removes a broad range of over 200 contaminants, including:

  1. VOC’s
  2. Lead
  3. Fluoride
  4. Heavy metals
  5. Pesticides
  6. SVC’s
  7. Disinfectants
  8. Inorganic non-metallics
  9. Herbicides
  10. Pharmaceuticals
  11. PFOA
  12. PFOS
  13. Micro-organisms

Along with this, you will also get a mounting bracket, 3/8” quick connect fittings, 6’ pc of 3/8” tubing, wrench, and chrome plated lead-free faucet kit.

You can buy this filter with or without the designer faucet.

The filter housing is made from BPA and BPS-free ABS plastic, one of the strongest and most durable plastics in the world.

Installation is super easy and the same goes for replacing the filters which a life expectancy of 1 year.

  • The build quality is excellent
  • Removes over 200 contaminants
  • Easy to install
  • Easy filter replacement
  • Tested to NSF/ANSI-42, 53 & P231 standards
  • The filters don’t last long
See Reviews

How Do I Choose An Under Sink Water Filter?

After discussing the products, it’s time to talk about some other things that you should keep in mind while choosing an under sink water filter. So here are some features that you should look for:

Filtration Capacity: As you know that every water filter is not created equal, and has its own advantages and disadvantages. For example, some models come with good filtration capacity but they don’t remove some specific water contaminants properly.

That’s why it is recommended to do a water quality test to check the type of contaminants on your water source. This information will help you find out which will be best for your home.

Installation Process: To eliminate extra work, you should try to opt for filters that are easy to install. Now some of you might be thinking why the installation is an important factor. Well, if you pick a water filter that is difficult to install, then chances are that you might damage the filter during the installation.

Apart from this, if you ever decide to shift or change the location of your filter, then it will become very difficult for you and you might need to spend some money to get professional help.

Water Pressure: This is the most important feature that you should look for when buying a water filter. Make sure the water filter is able to deliver good water pressure, otherwise, you will have to wait for a long time and it can be a little annoying, especially when you are in a hurry.

However, most under sink water come with good water pressure but still, taking precautions is better than regretting it later.

Is Drinking Tap Water Bad?

kitchen faucet

This topic is quite a murky subject. Although tap water is regulated in the US, some reports state otherwise. So the fair answer to this question is: it depends on where you live.

The quality of tap water varies by location so you’ll need to check local water supply reports by yourself. Below is the status of the quality of tap water of the country’s major metropolitan areas:

Boston: Good

The city has made major efforts to protect its watersheds.

Chicago: Fair

Lake Michigan is vulnerable to discharge from factories and other areas.

Los Angeles: Poor for imported water; fair for local water

Almost half of the city’s water comes from distant sources like the Colorado River, which are at severe risk for contamination.

New York: Good

Although the NRDC report doesn’t evaluate New York City’s drinking water, a 2014 Department of Environmental Protection report indicates the water quality is high and meets all health-related state and federal drinking water standards.

Phoenix: Poor

The city obtains 90 percent of its source water from areas vulnerable to depletion and contamination.

San Francisco: Good

Eighty-five percent of the city’s water comes from Yosemite’s Hetch Hetchy watershed and is well-protected.

Washington, DC: Fair

The city’s source, the Potomac River, is vulnerable to pollutant sources.

Source: OneMedical

As you can see in most cases a water purification system is a must. For example, in Phoenix. Although San Francisco and New York have good quality tap water, I still recommend some sort of filter (even though the water is well regulated and constantly being tested, some debris are still present – limescale, for example).

Are Under Sink Water Filters Any Good?

Under sink water filters are bigger than their faucet brethren: they have more room for larger and/or more filters. Therefore, their water is more purified.

However, because of their size and bulkiness, they don’t fit in all kitchens. In this case, the owner is forced to choose a smaller filter system or install it somewhere else.

How Do You Install A Water Filter Under The Sink?

See this step-by-step instructional video. It’s short, yet very informative. I watched this exact video when installing my own system and found it the best.

What Is The Best Under Sink Water Filter?

So these were some of the best under sink water filters that you can buy. Some years back, under sink water filters were not that popular but now with the advancement in time and technology, they have gained a lot of popularity.

However, many people are adding these underwater filters in their filtration systems to protect their family safe from bacteria and viruses.

At last, my suggestion is that you should only buy products from reputed companies in order to get the best water protection. Though if you ask me, then I would recommend you to go with the Aquasana AQ-5300+ as it has been in the business for a very long time.

I hope this article will give you some helpful information. 

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4 Best Under Sink Water Filters

How good is your tap water? I had to boil mine every time before using it. After installing my own water filtration system, this became a thing of the past.

About Mario 75 Articles
I am the owner of the Kitchen Guru Ideas. I've set up this site so I can share my kitchen tips and hacks that have been passed on to me from my parents and grandparents and show you how a wonderful experience cooking is and not just a way to save money. Even in this hectic lifestyle, there is time to prepare and most important enjoy a home-cooked meal.

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