Best Under Sink Water Filter 2018 | Our Top Picks and Buyer’s Guide

Purchasing the best under sink water filter 2018 is one of the best decisions you can make for your home regardless of the tap water conditions in your area or where you live. As you probably know, your water treatment plant and the Environmental Protection Agency cannot always guarantee you clean and healthy water for your household. Even where tap water undergoes a thorough cleaning process, some contaminants will remain. Therefore, installing an under sink water purifier will ensure you have a yearly supply of clean and pure drinking water, free from all contaminants. However, with thousands of under sink water purifiers on the market, choosing the right one for your needs can be challenging and overwhelming. But don’t let that worry you. In this under sink water filter reviews, we have done the homework for you, and here are some of the best purifiers on the market.

Top 5 Best Under Sink Water Filters 2018

1. Epic Smart Shield Under Sink Water Filter System

Turn your ordinary tap water into sparkling water that is clean and healthy with this water filtration system. If you are looking for a water filter that removes over 99.99% of contaminants present in water, then you should consider this filtration system. It’s 100% eco-friendly, featuring activated coconut carbon filters. Apart from giving you clean and healthy drinking water, this water filter also helps to conserve the environment.

It uses an in-depth and adsorption filtration process, which ensures sub-micron removal of contaminants. Its adsorption process removes the particulates present in water, which is achieved through the activated coconut carbon surfaces. This process removes various contaminants such as chemicals, heavy metals, herbicides, and pharmaceuticals, among others. On the other hand, the depth filtration process ensures the removal of suspended waste material present in water, which manages to pass through the activated carbon.

As one of the best under sink water filters on the market today, the Epic Smart Shield features an easy installation process. You don’t need to install any holes or buy additional brackets. It comes with everything needed in the installation process. A heavy duty Velcro is included in the package, thus eliminating the need to drill. You will also note that it connects directly to the cold water line supplying your kitchen sink. With an adjustable wrench, you will have finished installing it within a few minutes. With this filtration system, you can have total confidence that you are always consuming clean and pure water.

2. APEC WFS-1000 Super Capacity

The APEC WFS-1000 Super Capacity is a great choice for those looking for a water filter that can eliminate all contaminants. It’s one of the best and most popular water filtration systems that you can find on the market today, and there are numerous reasons why most people love it. Some water filters have been accused of breaking down too easily, but this is not the case with this water filter. It features high-quality materials while the engineering and assembly processes are according to the highest standards thus resulting in a durable and dependable water filter.

It uses a 3-stage filtration process, which helps to remove almost all contaminants present in tap water. Some contaminants arsenic, chloride, fluoride, lead, virus, bacteria and heavy metals might pass through the municipal water treatment process. However, as long as you have this kit in your home, they will never be present in your drinking water. This system will trap and remove them while ensuring your water is soft and safe for consumption.

The APEC WFS-1000 Super Capacity water filter is easy to install. It’s designed to fit under all standard kitchen sinks. Everything required during the installation process is included in the package, including high-quality fast connection fittings, clog-free flow restrictor, stainless steel check valve, food grade tubing, input water adapters, tank ball valve, wrench, drain saddle, and a lead-free chrome faucet, among others.

3. Nahla Pure Ultra High Capacity

When looking for the best under sink water filter, you have to consider various factors before you buy. One of the most important considerations is the longevity and durability of the unit. Some cheaply made systems will only treat your water for six months and they will require a replacement. If you are tired of such filters and you are looking for a device that you will install and forget, then the Nahla Pure Ultra High Capacity should be among your top considerations.

With the capacity to treat over 10,000 gallons and a lifetime of at least 3 years, you finally have a water filtration system that offers value for money. Apart from the high amount of water it can treat, this filtration system removes almost all harmful contaminants present in water. It also improves the color and taste of your water. It removes chlorine, lead, and calcium, among other harmful elements. Its installation process is fast and easy. From start to finish, you will have completed the work in less than 45 minutes. Once the
installation process is complete, you will end up with water that tastes as if it has just been drawn from a spring.

Since it’s installed under the sink, it frees space in your kitchen, which can be used to store other appliances such as refrigerators. It mounts easily and securely to the wall beneath the sink, thus eliminating unnecessary clutter. Overall, this is a great water filtration system, which will last longer than most of the other filters on the market.

4. Aquasana 3-Stage Under Sink Water Filter System

Aquasana is a renowned brand when it comes to water filtration solutions, and the Aquasana 3-Stage Under Sink Water Filter System is no exception. As an NSF certified water filter, this system can remove more than 60 contaminants present in water, including chlorine, heavy metals as well as organic chemicals. It will also alert you whenever it requires filter replacement. Only a handful of filtration systems
on the market can come close to what the Aquasana 3-Stage Under Sink Water Filter System offers.

If you are looking for the best under sink water filter that can comfortably fit under your kitchen sink, then this is a perfect solution. It uses Claryum technology, which helps to minimize or eliminate lead, mercury, cysts and asbestos. It also has the capabilities of reducing various organic chemicals present in water, such as fertilizers. Despite its efficiency when it comes to removing a large number of water contaminants, it’s selective filtration system ensures that your water retains naturally occurring elements such as magnesium, calcium, as well as potassium – for pleasant tasting water.

Unlike other under sink water filters, this one uses an inline system. Therefore, it filters water on demand as opposed filtering and then storing it in a tank. This technology helps to save energy since it will only filter the required amount of water. It comes with a flow rate of half a gallon per minute, which should be sufficient to ensure a steady supply of pure drinking water out of your faucet. It has a long lifespan and can purify more than 600 gallons of water before it requires filter replacement.

Regarding design, this unit is small and compact, making it easy to fit underneath the sink. Also, you will not require a professional to install it for you, since the entire process is easy and fast. It also comes with installation instructions, making it easy for anyone to install. As a bonus, you will also get a free faucet when you purchase this water filtration system. It’s available in three different color options, including oil rubbed bronze, brushed nickel and chrome. Make a wise decision today and purchase this stylish,
convenient and effective water filter.

5. WaterChef® U9000 Premium Under-Sink Water Filtration System

The WaterChef® U9000 is a robust and powerful under sink water filter, which can remove over 50 contaminants present in water. It’s designed to improve the color, taste and odor of your drinking water. It has a high filtration capacity, and it can filter more than 1000 gallons of water. With its Intelligent Monitor technology, you no longer have to guess when the filters require a replacement since it will automatically notify you.

Heavy metals are usually present in most water supplies together with chemicals such as herbicides and pharmaceuticals. Also, municipal water supply also contains microorganisms, which can be harmful to your health. The good news is that you no longer have to worry about these contaminants since the WaterChef® U9000 removes or reduces almost all of them. It also eliminates sediments present in water, thus improving the life of your appliances.

One of the biggest advantages of using this water filter is that it only uses a single cartridge to clean thousands of gallons of water. It can sustain an entire family for a year without requiring filter replacements. With the use of a single cartridge, this water filter will save you time and money needed during frequent filter replacements.

Its design is aesthetically appealing. Its body is made of stainless steel, and there are four design options available. It’s also compact. Therefore, it will not consume a huge amount of space beneath your kitchen sink. If are looking for one of the best under sink water filters, then the WaterChef® U9000 is just what you need. Buy this unit today, enjoy clean and fresh drinking water throughout the year and say goodbye to bottled drinking water.

Under sink water filter – Buying Guide

The bottled water industry has been taking advantage of people’s fears when it comes to tap water for many years. As much as those fears might be true, you have numerous options available if you are looking for pure and fresh water for your home. Installing an under sink water filter is a great cost-effective option, which will supply you with clean and fresh water throughout the year. However, you have to consider various things before buying these filtration systems, to ensure you get value for your money. These factors include:

 Water Pressure: When it comes to buying the best water filter, water pressure is vital. Imagine waiting for ten minutes just to fill a single glass of water. Frustrating, isn’t it? Well, that’s why you should never compromise on water pressure, regardless of how great the deal is. If your current water pressure is already underwhelming, then investing in an under sink water filter capable of delivering a steady supply of water pressures remains a vital consideration. Most under sink water filters deliver better pressure as compared to conventional units. On the other hand, if the water pressure is too much, it means that water is spending insufficient time in the filter, and some contaminants might pass through without being filtered. Therefore, find a water pressure that delivers just the right amount of pressure for your needs.

 Filtering Capacity: Depending on the engineering process of the filter cartridge, it’s common knowledge that some water filters are more efficient when it comes to removing certain contaminants as compared to others. As much as some models come with a good overall filtration capacity, they might still lack some capabilities of removing certain elements. Therefore, before you buy an under sink water filter, test it with a home water quality testing kit. As you pass water through a testing kit, it will show you the type of contaminants present in your water. Armed with this information, you should then purchase a filtration system that addresses your home’s filtration needs.

 Ease of Installation: Another important consideration when buying the best under sink water filters is the ease of installation. As you probably know, you will only install the unit once. However, if the filter is difficult to install and you are doing it on your own, you might damage it during the process. When that happens, you might find yourself engaged in a tiresome and long conversation with the customer service
executives, as you request a spare part or even a replacement of the entire unit – and you don’t want to find yourself in that situation. Secondly, hiring a professional plumber to install the unit for you, will cost you money. Most under sink water filters are designed for DIY installation. In addition, if you encounter any challenges during the installation process, you can always refer to your manual or find a YouTube video on the same. If you still find it hard to install the unit even after consulting all those resources, it’s always advisable to call the customer service representatives before hiring a plumber. The good news is that all the water filters on this list are easy to install. In addition, you can change their filters in less than 5 minutes.

 Durability and Cartridge Longevity: Most under sink water filters require a cartridge change after every six months. While it’s not such a big issue, some people consider it as inconveniencing. The good news is that can find water filter, which will only require a filter change once in 3 to 5 years. You should also note that most cartridges use the same filtration technology. Therefore, if a cartridge is filtering more water, then it means its built better.

Cartridges that filter water for 3 to 5 years before needing a replacement are usually made of high-quality components. This means they are highly efficient when it comes to water filtration. However, it’s important to note that even if a particular cartridge has been advertised as a durable one, it might not serve you for the expected lifespan. Cartridges depend on water quality and they are mostly tested using municipal water.

As much as municipal water is highly treated, it may not arrive on your faucet as it left the municipal water treatment facility. The water goes through thousands of miles, passing through old pipes. Therefore, you will receive water with more contaminants as opposed to the one the cartridges were tested with. In short, if a cartridge has been advertised to serve you for six months, expect to change it in the fourth or fifth month.


When you install an under sink water filter, you will see and enjoy the benefits immediately. It’s also one of the best ways when it comes to building healthy water drinking habits since you will always have pure water by your side always. Apart from that, if you purchase a high-quality unit, you will keep your family safe from water-related contaminants, knowing that they are drinking clean and pure water, regardless of the level of pollution around your water source. As much as tap water goes through a thorough cleaning process, it’s always safe to protect yourself further. Install an under sink water filter today and enjoy fresher and tastier water.

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