JavaScript must be enabled in order for you to see "WP Copy Data Protect" effect. However, it seems JavaScript is either disabled or not supported by your browser. To see full result of "WP Copy Data Protector", enable JavaScript by changing your browser options, then try again.

12 Best Rated Under Sink Water Filter Systems – In-Depth Reviews

A fter the Flint incident, people all over the U.S. have realized that trusting the work done by the municipality might not always be the right answer. Water is something that we cannot live without, we need it for hydration, cooking, cleaning, and washing. But it is not a matter of quantity alone as the quality of the water counts just as much, if not more, reliant on the use you intend for it and the specific pollutants that alter it.

To fix these issues, you require a successful filtration means set, and, in this article, we will explore the capabilities of under-sink water filters. More convenient installation-wise as they are hidden from view and don’t need much space either, they offer the profit of pure potable water at the faucet. Their proficiency is comparable to that of whole-house systems, the sole dissimilarity standing in the detail that their action affects a single tap, rather than for the entire house.

As more research has gone into development, their efficiency in pollutant removal has grown as well, and hereafter, we will present you with what we view as the most valuable models at the moment.

If you want to have clean, uncontaminated water pouring from all the faucets in your home, explore the best whole house water filters for well and install one to never have another water purity issue.

Content Navigation

[toc]

Top 12 Under Sink Water Filters Compared

Photo Product Capacity Contaminants Removed Filtration Stages Filter Life Warranty Price

Best Overall

1. Aquasana AQ-5300.56

600 gallons 77 3 6 months 1 year Check Price at Amazon

Our Choice

2. Pelican PDF-1500

1,500 gallons Chlorine, chloramines, taste, odor, and more 3 6-12 months 1 year Check Price at Amazon

3. Home Master TMAFC Artesian

2,000 gallons Chlorine, sediment, heavy metals, and more 7 1 year 5 years Check Price at Amazon

4. APEC WFS-1000

N/A Lead, chlorine, and other contaminants 3 1 year 1 year Check Price at Amazon

5. iSpring RCC7

N/A Over 1,000 contaminants 5 6-12 months 1 year Check Price at Amazon

Best for Hard Water

6. CuZn UC-200

50,000 gallons Heavy metals, chlorine, sediment, pesticides, herbicides, bad taste, odors, algae, molds, and more 3 5 years 5 years Check Price at Amazon

7. Express Water RO5DX

N/A Over 100 contaminants 5 6-12 months 1 year Check Price at Amazon

8. Frizzlife MK99

1,600 gallons 99.99% of contaminants, including lead, heavy metals, chlorine , chromium 6, mercury, rust, and more 2 2 years 2 years Check Price at Amazon

Best for RV

9. Culligan US-EZ-4

500 gallons Chlorine, sediment, cysts, mercury, VOCs, and more 1 6 months 2 years Check Price at Amazon

10. GE GXK285JBL

300 gallons Pharmaceuticals, VOCs, lead, chlorine taste and odor, and other contaminants 2 6 months 2 years Check Price at Amazon

11. Filtrete 3US-PS01

2,000 gallons Chlorine, sediment, VOCs, lead, TDS, and more 1 6 months 1 year Check Price at Amazon

12. EcoPure ECOP40

550 gallons Over 99.9% of viruses, cysts, bacteria, lead, chlorine, sediment, and more 3 6 months Satisfaction guarantee Check Price at Amazon

1. Aquasana AQ-5300.56

Check Price at Amazon


Specifications:

  • Capacity: 600 gallons
  • Filtration stages: 3
  • Filter media: 20-micron pre-filter, activated carbin, catalytic carbon, ion-exchange
  • Filter life: 6 months
  • Contamination removal: 77
  • Flow rate: 0.5 gallons per minute
  • Operating pressure: 20 – 80 PSI
  • Operating temperature: 40°F – 90°F
  • DIY installation:
  • Fitting size: 0.25”
  • Warranty: 1 year


This is our favored entry due to its performance and reasonable asking price. Moreover, as it is contrived by a leading brand, any issue related to manufacturing will be handled professionally and in record time. If you seek further proof of its quality, know that it flaunts quite a few NSF certifications, including 42, 53, 401 + P473. While the product is still under warranty, repairs are provided free of charge too. With the acquisition, you also receive a faucet that is available in multiple design options.

General Specifications
AQ-5300.56 Specs
Rated flow:
0.5 GPM
Working temperature:
40 – 90°F
Working pressure:
20 – 80 PSI
DIY installation:
Yes
Claryum Technology

The high 97% chlorine reduction proficiency is granted by this method, which also tackles other common toxins in your water. A pre-filter and 3 filter media stand at its basis and help retain naturally occurring minerals with health-boosting properties, like Mg, Ca, and K.

The purification resources on which it relies in its operation include:

  • 20-micron pre-filter;
  • Activated carbon;
  • Catalytic carbon;
  • Ion-exchange.
Warranty

The company grants a 90-day satisfaction pledge period during which you can inspect the product and return it to profit from a full reimbursement. The warranty is 1 year long, and the agreement covers faults in materials and workmanship. There are exceptions, situations where the warranty might even be voided, so we advise that you look into the assurance agreement provided to see how and when you benefit from free reparations and substitutions and avoid the unwanted situation where you unknowingly cancel the agreement because of improper use.

Maintenance

Filter media substitution guessing is out of the question as it lets you know via an alert when the task is required. Thus, you won’t ever be caught off-guard and utilize it when the cartridges can no longer clear out impurities.

This upkeep task is to be anticipated by-annually or so, reliant on your domestic water use rate. The cases have a twist-off design that even eases your work when the time comes for upkeep, which is a plus as the procedure is not intricate or time-consuming.

See here the best Aquasana whole house water filter systems if you want to take a closer look at more complex water decontamination units the manufacturer provides.


2. Pelican PDF-1500

Check Price at Amazon


Specifications:

  • Capacity: 1,500 gallons
  • Filtration stages: 3
  • Filter media: 25-micron pre-filter, two catalytic GAC carbon filters
  • Filter life: 6-12 months
  • Contamination removal: Chlorine, chloramines, taste, odor, and more
  • Flow rate: 1 gallon per minute
  • Operating pressure: 40 – 80 PSI
  • Operating temperature: 40°F – 100°F
  • DIY installation:
  • Fitting size: 0.25”
  • Warranty: 1 year


A rather common problem with filters is that in their operation, they dispose of healthful minerals from your potable water, causing an imbalance in your body if you don’t replenish the stock from other food or drink supplies. This is not the situation here as the product utilizes 3 separate filtering steps without eliminating the healthful minerals as it gets rid of pollutants.

It utilizes a 25-micrometer residue filter and two granular activated charcoal filters. Each requires substitution after an estimated 6 to 12 months, the exact time fluctuating according to water consumption rates.

It flaunts a 1,500-gallon capacity, which spares you of extra costs over time as upkeep is not demanding or required too often. During its operation, it is capable of getting rid of over 60 common tap water toxins, including VOCs, chlorine, chloramines, cysts, and others.

The purchase includes a stylishly designed faucet that is accessible in chrome, brushed nickel, and bronze. Moreover, it is warranted against defects for 1 year. Just install it as instructed and utilize it properly and you benefit from free repairs within this period.

On the hunt for a solution to deliver clean water throughout all pipes? Then see here the best Pelican whole house water filter systems and make an acquisition that is sure to comply with your expectations.


3. Home Master TMAFC Artesian

Check Price at Amazon


Specifications:

  • Capacity: 2,000 gallons
  • Filtration stages: 7
  • Filter media: Pre-filters, sediment filter, catalytic carbon filter, reverse osmosis membrane
  • Filter life: 1 year
  • Contamination removal: Chlorine, sediment, heavy metals, and more
  • Flow rate: 50 gallons per day
  • Operating pressure: 40 – 95 PSI
  • Operating temperature: 40°F – 100°F
  • DIY installation:
  • Fitting size: 3/8”
  • Warranty: 5 years


You don’t need more than basic DIY skills to connect this model and benefit from its effective water purification services right in your home, which is good news as, besides the great value it comes at, entails that you won’t spend extra cash on a professional mounting either. The accompanying owner’s manual explains the installation procedure in full, so even if you don’t have prior practice, you will certainly handle the task.

Per day, you can anticipate it to deliver upward to 50 gals. of clean water, so it works for large families when water intake is high. We cannot end without praising the industry-leading 5-year warranty provided by the company as it is a standout on its own.

This RO system differs from other entries as it re-mineralizes the water twice before outputting it to maintain pH balance and truly healthy hydration. During the 7-step filtration procedure, it eliminates upward to 98% of liquefied solids, compounds, and other pollutants, its effectiveness being granted by the pre-filters and the RO membrane.

While with most RO systems filter change can be quite a bother, the same cannot be said in this specific case as each filter sits in its own housing to make upkeep a cinch. Moreover, you do not necessitate any tools for the operation as it is performed by simply pulling out the old cartridge and inserting the new one.


4. APEC WFS-1000

Check Price at Amazon


Specifications:

  • Capacity: N/A
  • Filtration stages: 3
  • Filter media: 10” high-capacity polypropylene sediment filter, two extruded carbon block 10” media
  • Filter life: 1 year
  • Contamination removal: Lead, chlorine, and other contaminants
  • Flow rate: 0.75 gallons per minute
  • Operating pressure: 20 – 85 PSI
  • Operating temperature: 40°F – 100°F
  • DIY installation:
  • Fitting size: 3/8”
  • Warranty: 1 year


Seeing how the upkeep work related to filter change is only required once per year, there is not much hassle or money waste involved with this 3-step model. Needless to say, the accessible price makes it a favorite among customers.

In phase #1, it employs a 10-inch polypropylene filter that serves the aim of handling pollutants like residue, rust, and silt. In phase #2, the 10-inch extruded carbon block filter eliminates chlorine, which has a positive impact on the taste and smell of potable water, even solving the matter of cloudiness if this was ever a trouble. The third phase employs the same media utilized in the second step, with the purpose to further diminish contamination issues and assure uncontaminated water.

Setup is quite simple and you are likely not going to have any issues following through with it, especially seeing how every step is comprehensively explained in the accompanying manual. With a flow rate of 0.75 GPM, the force with which the water pours from the faucet is not influenced by this addition. Moreover, the product is backed against defects for 1 year, during this period the manufacturer covering repair costs free of charge.


5. iSpring RCC7

Check Price at Amazon


Specifications:

  • Capacity: N/A
  • Filtration stages: 5
  • Filter media: PP sediment filter, GAC filter, CTO filter, RO membrane, GAC filter
  • Filter life: 6-12 months
  • Contamination removal: Over 1,000 contaminants
  • Flow rate: 75 gallons per day
  • Operating pressure: 40 – 70 PSI
  • Operating temperature: 100°F
  • DIY installation:
  • Fitting size: 0.25”
  • Warranty: 1 year


There might be an abundance of toxins that plague tap water, but seeing how this system removes over 1,000 pollutants it encounters, including chlorine, bacteria, giardia, lead, fluoride, and more, you will benefit from uncontaminated water as soon as you start using it. Its effectiveness is granted by the 5-step filtration method that gradually removes pollutants.

There are 3 pre-filters encompassed in the setup – a PP sediment filter, a GAC filter, and a CTO filter. Their role is to eliminate large-size pollutants and chemicals so that the RO membrane functions at its full capacity afterward. At the heart of it all sits the aforementioned RO layer that has the purpose of eliminating contaminants down to 0.0001 micrometers in size, pollutants that no other filtration method would handle. In the last stage, the GAC filter or post-carbon filter does one last refinement so that no elements escape and taint the water.

An all-metal, stylish faucet is comprised with the acquisition, as well as all the fitting hardware, so there are no extra costs involved from this point of view. Furthermore, iSpring backs it against defects for 1 year, so in case there are any manufacturing mistakes, you receive free repairs while the agreement is active.

Upkeep is desirable either bi-annually or annually, consistent with the domestic intake rate, so you won’t spend much money on it over time. The residue filter case is clear, so you can see beforehand when replacement is due at a glance. Setup is not a demanding procedure and you can execute it without professional assistance to save money. What you must do is push to join the fittings, and the tubings are color-coordinated to make your work easier.


6. CuZn UC-200

Check Price at Amazon


Specifications:

  • Capacity: 50,000 gallons
  • Filtration stages: 3
  • Filter media: Micro-sediment membranes, KDF-55 media, catalytic coconut shell carbon media
  • Filter life: 5 years
  • Contamination removal: Heavy metals, chlorine, sediment, pesticides, herbicides, bad taste, odors, algae, molds, and more
  • Flow rate: 2 gallons per minute
  • Operating pressure: 65 PSI
  • Operating temperature: N/A
  • DIY installation:
  • Fitting size: 0.25”
  • Warranty: 5 years


At a sensible price, you will gain from water purification in your own home for up to 5 years as it necessitates replacement only after purifying up to 50,000 gallons, exceeding its competitors in the capacity department. It sieves the water selectively to preserve beneficial mineral content.

Setup is straightforward as it just needs to be joined to the cold water line. A standout is the 2 GPM flow rate that doesn’t affect the force with which the water pours of the faucet so that you are not inconvenienced by its operation. It is the suggested choice for hard water and well water, so keep this aspect in mind before you make a specific choice as it might be the selection that best complies with your needs.

The micro-sediment membrane eliminates silt and similar particles, while a mixture of KDF-55 media and catalytic coconut shell carbon impedes the formation of scale, eliminates chlorine to solve any issues related to unpleasant taste and smell, and eliminates other common tap water pollutants. Moreover, it flaunts a bacteriostatic design that prevents mold or bacteria development.

When it comes to backing, CuZn covers it for the first 5 years, so it is warranted throughout its entire lifecycle. Additionally, a 90-day money-back pledge is provided that grants a full reimbursement in case you want to return it.


7. Express Water RO5DX

Check Price at Amazon


Specifications:

  • Capacity: N/A
  • Filtration stages: 5
  • Filter media: Sediment filter, carbon block filter, GAC filter, RO membrane, post-carbon filter
  • Filter life: 6-12 months
  • Contamination removal: Over 100 contaminants
  • Flow rate: 50 gallons per day
  • Operating pressure: 40 – 80 PSI
  • Operating temperature: 100°F
  • DIY installation:
  • Fitting size: 0.25”
  • Warranty: 1 year


Effective against over 100 common contaminants, this RO system helps generate the purest drinking water due to its 99.99% removal efficiency rate when tackling contamination like chlorine, bacteria, lead, fluoride, calcite, pharmaceuticals, and more.

It uses a 5-step filtration method that is comprised of a residue filter, a carbon block filter, a GAC filter, a RO membrane, along with a post-carbon filter. Each purification media is double sealed to ensure enhanced filtration efficiency.

Per day, it can clean up to 50 gals. of water, and the pour rate at which it is outputted is 0.8 GPM. It comprises a leak stop valve that senses excess water and closes the flow to prevent leaks.

It is intended to fit neatly under counter in a cabinet, is compatible with 3/8” and 1/2” connections, and comes with a housing wrench that comes in handy for media substitution. With the acquisition, you also receive a brass feed adapter and quick-connect adapter so that you may install it on your own without having to buy additional hardware.

It functions on 80 PSI tops, so there is a chance that you might need a pressure regulator. It is NSF Standard 58 certified, which implies that it flaunts a lead-free build and boasts high efficiency when it comes to dissolved solids reduction. Moreover, 1-year backing is provided against defects.


8. Frizzlife MK99

Check Price at Amazon


Specifications:

  • Capacity: 1,600 gallons
  • Filtration stages: 2
  • Filter media: Block carbon filter cartridge with 0.5 micron precision, Sediment filter cartridge with 5 micron precision
  • Filter life: 2 years
  • Contamination removal: 99.99% of contaminants, including lead, heavy metals, chlorine , chromium 6, mercury, rust, and more
  • Flow rate: 2 gallons per minute
  • Operating pressure: @40 PSI
  • Operating temperature: 39°F – 100°F
  • DIY installation:
  • Fitting size: 3/8” or 1/2”
  • Warranty: 2 years


Offering two filtering stages, the first one being designed to capture sediments down to five microns and the second one, a carbon block, having an efficiency of up to 99.99% against contaminants down to 0.5 microns, this model is a nice pick for a medium-sized household as it has a capacity of 1,600 gallons. In general, the filters last for up to two years, but this period may vary depending on the volume of water that is consumed daily.

The kit consists of a plastic casing, which encapsulates the two filters, and all the necessary hardware you will need for the installation. The setup process is straightforward, so there’s no doubt that you will be able to do it yourself, and it will only take you a few minutes. It matches both 3/8” and 1/2” water lines (cold), and the converters are included, so there’s nothing complicated here. With the quick twist mechanism, you won’t even need tools. Plus, when it comes to changing the filters, you won’t even need to close the waterline as the filter cap presents a special valve. You will just need to close it and do your job. Once again, a matter of minutes.

It has an excellent flow rate of 2 GPM if run at the recommended pressure of 40 psig, unlike other models that force you to wait longer until filling a glass of water. Thus, you will be able to use it for various household activities that require more water, like cooking or washing vegetables. It is backed by a 1-year service assurance.


9. Culligan US-EZ-4

Check Price at Amazon


Specifications:

  • Capacity: 500 gallons
  • Filtration stages: 1
  • Filter media: RC-EZ-4
  • Filter life: 6 months
  • Contamination removal: Chlorine, sediment, cysts, mercury, VOCs, and more
  • Flow rate: 0.5 gallons per minute
  • Operating pressure: 30 – 100 PSI
  • Operating temperature: 40°F – 100°F
  • DIY installation:
  • Fitting size: 0.25”
  • Warranty: 2 years


Yet another well-known brand makes an appearance here, Culligan impressing with this single-stage system that requires upkeep work only once every 500 gallons of water are cleaned of impurities. Thus, replacement is likely necessitated only on a bi-annual basis. The installation hardware and a lead-free faucet are included in the package to spare you extra expenses. You are instructed in regards to how you should install it in the user manual, so you needn’t ask for professional help which would cost you a pretty sum of money.

The quick-connect fittings ensure that media replacement will be a cinch. It integrates a LED filter life indicator that comes in handy as it lets you know when the procedure is needed so that you won’t forget to do it on time.

The rated service flow is 0.5 GPM, and it works with temperatures from 40F to 100F. Furthermore, it can manage a pressure range from 30 to 100 PSI. Another mention-worthy performance aspect is that it can handle purifying water which contains a maximum of 5 NTU turbidity, so keep this aspect in mind.


10. GE GXK285JBL

Check Price at Amazon


Specifications:

  • Capacity: 300 gallons
  • Filtration stages: 2
  • Filter media: Carbon
  • Filter life: 6 months
  • Contamination removal: Pharmaceuticals, VOCs, lead, chlorine taste and odor, and other contaminants
  • Flow rate: 1.1 gallons per minute
  • Operating pressure: 35 – 125 PSI
  • Operating temperature: 33°F – 100°F
  • DIY installation:
  • Fitting size: Quick connect
  • Warranty: 1 year


Provided with a twist and lock fitting method, this model installs in minutes, and there’s no need for you to hire a professional for this job. You just need to connect it to the cold water line (you won’t need any tool, and all the hardware is provided) and test the clean water it delivers for the first time. As it has a dual design, the flow rate is increased to 1.1 GPM, which is a good value compared to what other models offer.

The filter is efficient against contaminants that have a size between 0.5 and 1 micron and was tested and certified by the NSF. Thus, it was proven that it can capture a wide array of VOCs, pharmaceutical substances, along with the more common pollutants like lead and chlorine. It also neutralizes bad odors and tastes, so the water will not only be cleaner but will taste better.

For optimal functioning, it needs to be connected to a water pressure between 35 and 125 psi, and the water temperatures should remain between 30F and 100F. Maintenance should be performed every 6 months to ensure proper efficiency, and this model displays a LED that will light on when it’s time for this action. The electronic timer will count the days, and you will need to reset it after replacing the filter. Moreover, you will receive a chrome controller that will help you switch between filtered and unfiltered water with ease, an option that will help you prolong the life of the filter. For any malfunctions that may occur during its functioning, this model comes with a 1-year company backing.


11. Filtrete 3US-PS01

Check Price at Amazon


Specifications:

  • Capacity: 2,000 gallons
  • Filtration stages: 1
  • Filter media: N/A
  • Filter life: 6 months
  • Contamination removal: Chlorine, sediment, VOCs, lead, TDS, and more
  • Flow rate: 2.25 gallons per minute
  • Operating pressure: 25 – 125 PSI
  • Operating temperature: 40°F – 100°F
  • DIY installation:
  • Fitting size: 0.25”
  • Warranty: 1 year


It is renowned for drastically reducing chlorine taste and odor, as well as eliminating 0.5-micron sediments without any hassle. Moreover, it does it all while still maintaining a cheap asking price that is topped by the cheap cartridge you only need to substitute after filtering 2000 gallons of water. It does not feature an indicator to show you when replacement is due, but there is a sticker that serves as a reminder for this upkeep task.

It takes less than 30 minutes to install and you do not need any plumbing skills to follow through with the procedure. It is NSF certified for standards 42 and 53, so it effectively reduces non-health-related pollutants like chlorine, chloramine, particulate, manganese, iron, zinc, and TDS, as well as health-related contaminants like lead, chromium, and VOCs.

It maintains a full water flow at 2.25 GPM so that there won’t be fluctuations in pressure after you install it. Moreover, a 1-year guarantee is provided against manufacturing defects. Within this period, it is repaired free of charge if needed.


12. EcoPure ECOP40

Check Price at Amazon


Specifications:

  • Capacity: 550 gallons
  • Filtration stages: 3
  • Filter media: N/A
  • Filter life: 6 months
  • Contamination removal: Over 99.9% of viruses, cysts, bacteria, lead, chlorine, sediment, and more
  • Flow rate: 0.75 gallons per minute
  • Operating pressure: 40 – 100 PSI
  • Operating temperature: 40°F – 100°F
  • DIY installation:
  • Fitting size: 3/8”
  • Warranty: Satisfaction guarantee


During the 3-step operating process, it effectively eliminates over 99.9% of sediment, pesticides, industrial solvents, bacteria, germs, cysts, herbicides, insecticides, and more.
However, it makes sure to not tamper with beneficial minerals in the water so that it won’t only taste better but maintain an active contribution to boosting your health as a whole.

Filter replacement is needed by-annually or after it purifies an estimated 550 gallons of water, so maintenance costs aren’t an issue. Moreover, the smart automatic shut-off feature halts the water flow when you follow through with changing the filter so that tainted water does not break through and put your health in peril.

Woefully, we cannot say much about its warranty, but what we can highlight is the inclusion of all the hardware necessitated to follow through with the installation. Moreover, the setup is simplistic due to the color-coded tubing featured by the system. Thus, you are likely to perform the installation without requiring professional help, which ends up saving you money.


How to Install and Maintain an Under Sink Water Filter

The huge improvement of the new filter types is that they can be effortlessly mounted, and the upkeep no longer requires professional assistance. In fact, some models come with quick-fit designs that don’t even require the use of tools, so the time spent with this operation is now considerably more reduced. Accessibility and ease of use are even more important when it comes to maintenance as these models go under the sink, and complex tasks surely would make this job more complicated. Luckily, all the units on this top have easy-fitting designs that won’t give you lots of trouble.
This being said, let’s have a quick look at how both installation and periodical upkeep work.

How to connect it

Keep to the steps below, and you will be consuming pure water in just a few minutes:

  1. Switch off the cold water – as the filter will be affixed to the cold water line, you will want to close it to avoid making a mess. Try to locate it underneath the sink. It is typically positioned to the right side.
  2. Clear the line of any remaining water – open the faucet and let the remaining water flow, so no water remains locked upstream of the line.
  3. Mount the adapter – each kit includes one or maybe two. Pick the one that corresponds to your line and connect it to the hose.
  4. Attach the tubing – it’s a plastic element with two openings. Read the instructions to see which goes to the connecter and which goes to the filter.
  5. Attach the second tubing to the water shut-off valve.
  6. Test – Open the waterline and let the water run first for 5 minutes and then for 10 more minutes. This will help activate the carbon and make the media function optimally.

The operation should run pretty smoothly, and you will soon notice the water flowing more clear and with an improved taste. Nonetheless, to maintain it this way, you shouldn’t neglect maintenance, which is an essential task in this case.

How to maintain it

You need to verify the included user manual to see what are the maker’s recommendations for how often should the filters be changed. This hinges on their type but also the sum of gallons consumed per day. Some models may last for 2 years or more, while others may require substitutions every few months. If your product comes with a LED indicator, check to see if it is lit, as this signals that the media has run its course.
Here are a few useful indications for changing the filters:

  1. This time you won’t need to turn off the waterline as you have previously installed a shut-off valve, so just make sure to close it. Once again, open the tap to release any water that may be stuck on the upper side of the line.
  2. Detach the housing(s). Sometimes, they will come off easily but, in other cases, you may need a wrench. Check the O-rings to make sure they are in good shape. If they aren’t have a couple prepared to change them.
  3. Clean the housing by using a solution made of water and soap. Use a brush to loosen any debris and dirt. Then, disinfect them with a solution made from water and bleach (2-3 spoons of bleach to a gallon of water should be sufficient). Pour the solution into the housing(s) and reconnect the whole system but without the media. Let the water run for a few seconds, then let the solution disinfect the system for half an hour. Finally, disconnect the housing by using the same procedure and discard the solution.
  4. Place the new filters in the cartridges and reconnect them to the system. Run the water for 5 minutes to activate the carbon.
  5. Don’t forget to check for leaks.

To maintain everything clean and tidy, periodically wipe the containers with a damp cloth to remove dust and dirt. Also, if, when detaching the filters, you observe great deposits of scale, you should consider replacing them more often as this indicates that the water in your area is hard and may decrease the system’s efficiency.

Under Sink vs Countertop Water Filters

Under Sink Water Filters – Pros & Cons

Pros:
  • Out of sight: What is undoubtedly the most noticeable gain of this system is that it stays out of sight. This implies that it won’t meddle with the design of your kitchen, allowing you to preserve the room as you like when it comes to its appearance.
  • Free up counter space: Counter space is valuable, especially in small-sized kitchens. With it, you can be certain that no space will be lost as it doesn’t reside on the counters you need for placing appliances and cooking tasks.
  • Great filtration rate: When pinned side by side, these models generally boast better filtration rates as opposed to their countertop counterparts. This implies a higher efficiency in decontaminating the water, and thus are a better choice for your health.
  • Keeping healthy minerals: What quality systems have in common is the fact that they help preserve healthful minerals. Thus, you won’t only hydrate with clean water, but the liquid you consume will offer you the requisite minerals for improved overall health.
Cons:
  • More challenging to install: In contrast to countertop models, they are more problematic to install as they demand some level of handy work. However, you need not get discouraged as the setup process is generally simplistic and explained in detail in the manual that accompanies each product.
  • Larger in size: Don’t get us wrong, when we refer to the unit being large, we mean when paralleled to countertop models. Evidently, their footprint is larger, but it isn’t all that big as to become an issue, and seeing how they install below the sink where it is unlikely that you keep anything else, size won’t ever be an actual issue.

Countertop Water Filters – Pros & Cons

Pros:
  • Small footprint: As they are intended for placement on the counter, these products tend to boast a small size that makes them quite a discrete addition to the kitchen.
  • Easy to install: As these systems generally only require a connection to the faucet, they are simpler to install, the procedure usually taking only a few minutes.
Cons:
  • Slow filtration: These systems take a longer amount of time to filter the same volume of water as under-sink models do, which is an obvious downside as it compromises their efficiency.
  • Occupy useful space: No matter how compact the system is, one thing is for sure – it takes up counter space. For those who have small kitchens where the counters are already cluttered with other useful appliances, this aspect is a negative one for sure.
  • Design wreckers: If you care for the aspect of the kitchen, you won’t be delighted by ruining it with the addition of a bulky and mismatched appliance.



Common Tap Water Contaminants


While the list of potential pollutants that could be afflicting the tap water quality is in the order of thousands, there is a shorter list of pollutants you are most likely dealing with, irrespective of the area you live in. Woefully, the effects these pollutants have on your health can be devastating depending on the period of ingestion, pollution levels, and your health state when exposed to them. Water decontamination is the sole solution to keep the health effects of these contaminants at bay. To increase awareness regarding potable water purification, we will talk a bit about some of these common pollutants.

Chlorine:
Intentionally added by multiple community water systems into the water supply to regulate the growth and spreading of microbes, chlorine not only impacts human health through direct consumption or bathing, but it can cause air quality to decrease indoors when it evaporates from the bath/shower and causes an unpleasant taste and odor of the water.

Chlorine – Health Effects
Nose irritations, Skin irritations, Eye irritations, Dry hair, Dry skin

Chloramines:
Generally added as an extra measure of disinfecting water in the municipal system, chloramines form when free chlorine water is mixed with ammonia.

Chloramines – Health Effects
Aggravation or causation of respiratory problems, Asthma, Mucous membrane damage, Skin irritations, Eczema, Red eyes, Digestive disorders, Gastric cancer, Ammonia toxicity

Lead:
A toxic metal that is dangerous even in low levels and that you must make sure to never consume.

Lead – Health Effects
Learning disabilities, Growth retardation, Weakened hearing, Impaired formation of blood cells, Peripheral nervous system damage, and Short stature in children, as well as Increased blood pressure, Raised incidence of hypertension, Reproductive problems, and Decreased kidney function in adults

Pharmaceuticals:
Synthetic chemicals that are found in medication, pharmaceuticals are common in water streams because of improper disposal and uncontrolled manufacturing facilities.

Pharmaceuticals – Health Effects
Developmental issues in children

Cysts:
Microbial parasites that are resistant to the disinfection processes used by municipalities enter the water through sewage and leaks.

Cysts – Health Effects
Intestinal illnesses, Nausea, Breathing difficulties

Volatile organic compounds:
VOCs are chemicals emitted as gases, and your body absorbs them when water is heated and vaporized.

VOCs – Health Effects
Eye irritation, Nose irritation, Throat irritation, Headaches, Kidney damage, Liver damage, Central nervous system damage, Allergic skin reaction, Dyspnea, Fatigue, Emesis, Epistaxis, Cancer

Mercury:
A liquid metal that enters our water through landfill runoff, cropland runoff, erosion of natural deposits, and discharge from factories.

Mercury – Health Effects
Brain damage, Kidney damage, Vision and hearing quality decrease, Memory problems, Irritability

MTBE:
MTBE, which is short for methyl tertiary butyl ether, is used to reduce ozone and carbon monoxide levels from auto emissions in gasoline. It ends up in our tap water through spills, pipelines, discharge from engines, and seepage of underground storage tanks.

MTBE – Health Effects
Headaches, Nausea, Dizziness, Throat irritation, Liver damage, Cancer

Conclusion

While not as proficient as whole house systems, but not as limited as pitchers, under-sink units provide an effective means to enjoy purified water as they capture contamination from the water that runs from the tap to which you connect them.

Here, we have presented the best models of the moment, but before we end, we want to go through some of the entries among them so that you get a clearer picture of what unit is most beneficial for your needs and expectations.

Best Overall: Aquasana AQ-5300.56

Brand reputability is the undeniable backing factor to make this acquisition without questioning its quality seeing how Aquasana is the most reliable manufacturer on the market. This 3-phase system is among their standout products as it eliminates upward to 77 pollutants, the likes of which even include chlorine and lead. Upkeep is required on a bi-annual basis, reliant on your domestic water consumption rate. Thus, costs related to running it are not high. Moreover, the manufacturer covers it against defects during the first year so that repairs are covered free of charge.

Editor’s Choice: Pelican PDF-1500

The 1,500-gallon capacity model is suited for all-size homes. What convinced us of its quality, though, is that it tackles over 60 common pollutants found in tap water, so regardless of the issues you are dealing with, it likely caters to your needs. It brings in a faucet at no extra cost and does not demand much in the way of upkeep seeing how the replacement is necessitated only annually or bi-annually, so it actually makes for an economical means to guarantee clean water running from the tap.

Best Under-Sink Water Filter for Hard Water: CuZn UC-200

The premium media are the ones making it the most suitable for softening hard water at the tap. As you install it, scale formation won’t be an issue anymore, and you can safely use the water it purifies in the coffee maker without worrying anymore about the state of the appliance. We must also emphasize the 50,000-gal. capacity that surpasses industry standards and ensures upward to 5 years of use before any upkeep work is necessary.

Best Under-Sink System for Chlorine: APEC WFS-1000

Chlorine is used in the treatment of water by municipalities, and while its efficiency is undeniable for decontamination, there’s a major issue with this chemical – it alters the taste and smell of the water, even leaving it looking cloudy. If your tap water suffers from any of these issues, then this APEC system is what you ought to look into since it specializes in the removal of chlorine and chloramines. Furthermore, it employs another 2 filtration stages to ensure proper contaminant reduction.

Best Under-Sink Water Filter for RV: Culligan US-EZ-4

Small and efficient in its operation, this Culligan entry is quite a common choice among RV owners who seek to have clean water for consumption and cooking consumption when they hit the road. Upon receiving the box, you will observe a surprising extra accessory that comes in handy with the setup, more precisely a lead-free faucet. Thus, no extra expenses follow as of acquiring it. We also like that it is fitted with a LED filter life indicator that takes the guesswork out of upkeep so that you won’t find yourself accidentally forgetting to perform on time, which would otherwise decrease the system’s efficiency.

Markus Mackay
Markus Mackay
Our resident expert in all things AC-related, Markus is a never-ending source of knowledge regarding how these systems work. What makes him so savvy in this field is his direct experience that he acquired while working in sales. The connections he made during that period also came in handy here as Markus knows a lot of experts in this field. With each article uploaded, he makes sure to gather the expertise of his more experienced ex-peers as well, making sure to provide readers with reliable reviews and articles.

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close