If you want to save yourself and your family from any kind of water-borne disease, 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 guide.
What Is the Best Under Sink Water Filter System?
- Best Reverse Osmosis: iSpring RCC7P-AK
- Best for Hard Water: APEC Water Systems WFS-1000
- Best 2-Stage: 3M Aqua-Pure AP-DWS1000
- Best for Well Water: NU Aqua Platinum Series Deluxe
Top 4 Best Under Sink Water Filters
After months of testing and researching, I’ve compiled a list of the 4 best water filters for under the sink.
To see which one removes the most contaminants, read all reviews in detail.
I’ll begin with my top choice:
iSpring RCC7P-AK Boosted Performance Under Sink 6-Stage Reverse Osmosis Drinking Filtration System
- Extremely durable electric booster pump
- Removes up to 99% of over 1,000 contaminants, including lead, chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more
- Includes Alkaline Remineralization filter
- Premium quality components
- Indoor use only
This iSpring Under Sink Water Filtration System is one of the best under sink water filtration systems currently available on the market.
Cleans and Rejuvenates the Water
It comes with 6-Stage Alkaline Remineralization Layered Filtration, which helps in restoring the natural alkalinity of the water.
The best thing about this water filter is that it balances the water minerals and makes the water healthier.
This feature sets it apart from other options and this is the reason why I also recommend this under sink filter to everyone.
It eliminates the most harmful contaminants like fluoride and asbestos.
The inbuilt Alkaline Remineralization filter protects all the minerals and gives very natural-tasting water.
It features a transparent look that makes water inspection much easier.
How It Works
This water filter comes with 3 pre-filters that remove the large contaminants and protect the RO membrane.
And for removing extra small microns (down to 0.0001), ultra-fine RO is also given.
Saves You Installation Money
With this water purifier, you will get all the necessary parts and the instruction manual, which makes it very easy to install.
You won’t need any help and you can easily do it by yourself.
Other Notable Features That Makes This One the Best
It comes with a lifetime personalized support, which means if you ever face any problem with this filter, then you can contact the support team.
If you want to get an extended warranty, then you will have to register on their official website.
- It is easy to install
- 6-stage water filtering system provides super clean water
- It comes with a modern faucet that suits all kitchens
- Backed with lifetime technical support
- It produces 75 gallons of water per day, which may not be enough for larger families
APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System
- Designed, engineered, and assembled in the USA
- Guaranteed to remove chemicals (i.e. chlorine), taste, and odors
- Premium long-lasting filters
- System comes with a 100% Lead-Free chrome faucet
- Feed Water Pressure: 20-85 psi
If you looking for a high-quality, well-designed under-sink water filtration system, then this water purifier from APEC Water Systems is one of the best options for you.
Eye-Catching Design
It features a very sleek design that will elevate the overall look of your kitchen.
Made to Last
The best thing about this water purifier is that it is made of durable materials, which means if you maintain it with a little care, then it can stay with you for a very long time.
Effective
It comes with an amazing filtration capacity that removes all the harmful chemicals and odors.
The Premium long-lasting filter is very effective in treating both tap and well water.
Additional Features
With this water purifier, you will get a 1-year guarantee along with lifetime support. This means after receiving the product if you spot any damages or defects, then you can easily apply for a replacement.
The water pressure is 20-85 psi, which is more than enough for a household.
The customer support will there you for, you just have to contact them and they will take care of everything.
The inbuilt faucet is 100% lead-free and the tubing is made of FDA certified material. This makes it completely safe from different kinds of chemicals such as chlorine, sodium, etc.
- Stainless steel faucet
- Provides natural tasting water
- Easy to setup
- No need for filter flushing hence no water wastage
- Not designed for TDS
3M Aqua-Pure Under Sink Water Filter System AP-DWS1000
- Reduces particulate, chlorine taste and odor, lead, turbidity, parasitic protozoan cysts, volatile organic compounds, and methyl tert-butyl ether
- Advanced dual-stage carbon-block filtration
- Sanitary Quick Change cartridge design
- Reminder to change cartridges
- Connects to a polished chrome dedicated drinking water faucet
- Installation hardware, faucet, and pipe connections included
This Aqua-Pure Under-Sink Water System is the perfect pick for people whose main priority is the look and design. It features a simple classic look that will suit all types of decors.
Removes a Ton of Contaminants
This water system is specially designed to fight and eliminate different kinds of contaminants.
It is very effective in reducing chlorine taste, turbidity, lead, volatile organic compounds, parasitic protozoan cysts, etc.
This under sink water purifier comes with an advanced dual-stage carbon-block filtration process, which improves the quality of the water and makes it clearer and better tasting.
Cartridges Are Super Easy to Replace
The best thing about this water purifier is that it comes with Sanitary Quick Change (SQC) cartridge design. This makes the cartridge change-outs easier and faster.
Faucet Included
To make it even more efficient, a dedicated faucet is also given, which is also made of high-quality material.
Installation Is so Simple That You Can Do It Yourself
3M Aqua-Pure provides all the necessary hardware, pipes, and faucet so that you won’t face any problems in the installation. This makes it best for people who have a job that requires frequent shifting.
You’ll Know Exactly When to Replace the Cartridges
Another great thing about this water purifier is that it features an Auto-shut off function.
Once the water quantity reaches 625 gallons, this meter automatically shuts off the system.
- Certified by NSF standards
- High capacity
- The flow rate is faster
- Easy to maintain
- No warranty coverage
NU Aqua Platinum Series Deluxe High Capacity 100GPD 5-Stage Under Sink Reverse Osmosis Ultimate Purifier Drinking Water Filter System
- PREMIUM QUALITY U.S. BRAND
- HIGH FLOW RATE At 100GPD
- Extremely easy do-it-yourself installation can take less than 1 hour
- CUTTING EDGE HYDRACOIL TECHNOLOGY
- INDUSTRY LEADING 5 YEAR WARRANTY
This NU Aqua Under Sink Reverse Water Filter System is made of premium quality materials, which makes it very durable and long-lasting.
Comes With Its Very Own Faucet
It comes with NSF 100% lead-free designer faucet and high-grade quality fittings for more safety.
Foolproof Installation
The best thing about this water system is that it comes with a free bonus installation DVD. It will provide you with a step-by-step guide that will save you time and make the installation process easy.
If you don’t have a DVD player, see this video:
Gift Included
Along with this, you will also get free PPM meters to easily test the water quality.
Improved Filtration System
It comes with a cutting-edge hydrocoil technology that purifies the water even more effectively and gives you 50% clearer and better-tasting water in comparison to other water filtration systems.
Removes Almost All Known Contaminants
This under sink water purifier kills and removes more than 1000 contaminants, which include fluoride, lead, chlorine, etc.
About the Brand
NU Aqua is one of the most reputed companies, which is known for providing quality products.
Their main goal is to provide the best services to their customers.
That’s why they provide a 5-year warranty on all of their products.
If you face any problems, then you can easily reach their support team for help and further inquiries.
- The build quality is excellent
- Amazing customer support
- Easy to install
- It comes with a 5-year warranty
- No UV filter
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 about 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 extra 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.
Frequently Asked Questions
Is Drinking Tap Water Bad?
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, this 2014 environmental 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
85% 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. Phoenix is one example.
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 could still be 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 filters to their filtration systems to protect their family safe from bacteria and viruses.
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 iSpring RCC7P-AK 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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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.
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