13 Best Water Filter Reviews of 2021

Healthy and safe water are necessary for our health. Tap water contains different contaminants, pollutants, and chemicals that are harmful to our health. They can make us sick. Therefore, for every person or house, a water filtration system is essential to install to get rid of these impurities.

You can use water bottles that you may find everywhere, but it is not the right and wise move. Good quality water filters are much cheaper as compared to the water bottles and may save your money in the long run.

But there are various water filtration systems available in the market that works differently to make your water clean and pure. Some use a reverse osmosis system to clean and pure water. They are under-sink water filtration systems. Other than this, some are carbon-based water filters that are called water filter pitchers. Moreover, countertop and faucet-mounted water filters are also very popular.

So, first of all, it is necessary to know about these water filters to get the idea which one would be best for you. After that, look for the best product of a particular type.

Best Water Filters (Comparison)

	Best Water Filters
	Editor's ChoiceiSpring RCC7AK Water Filter 6-filter system Free Maintenance Easy Installation	LATEST PRICE →
	APEC Water Systems RO-90 Lead-free chrome faucet Coconut carbon filter Hassle-free installation	LATEST PRICE →
	Home Master TMAFC-ERP RO Water Filter Non-electric pump Filter efficiency up to 98% quick purification process	LATEST PRICE →
	Aquagear Water Filter Pitcher Sustainable FDA-Approved Easy installation	LATEST PRICE →
	AquaBliss 10-Cup Water Filter Pitcher 1-year warranty Full Money-back guarantee Filter efficiency up to 98%	LATEST PRICE →
	Brita 10 Cup Water Pitcher Filter indicator Flip top lid Soft-grip handle	LATEST PRICE →
	New Wave Enviro 10 Stage Water Filter Compact size 10-Stage Filtration System Affordable	LATEST PRICE →
	Nakii Water Filter Pitcher ACF Filter Superior Absorption 1.8 liters capacity	LATEST PRICE →
	Home Master TMJRF2 Counter Top Water Filter Easy Installation 3-Stage Filtration System Advanced Granular	LATEST PRICE →
	Big Berkey Gravity-Fed Water Filter 99% efficient filter 6000 gallons/filter 2.25 gallons storage capacity	LATEST PRICE →
	DuPont WFFM100XCH Faucet Mount Water Filter Faucet mount Filter Micro ban Antimicrobial system 100 gallons/filter	LATEST PRICE →
	Culligan FM-15A Faucet Mount Filter NSF-Certified FM-15A filter 200 gallons/filter	LATEST PRICE →
	PUR FM-3700 Advanced Faucet Water Filter 100 gallons filtration capacity Easy Installation 100 gallons/filter	LATEST PRICE →

1. iSpring RCC7AK 6-Stage Reverse Osmosis Drinking Water Filter System – Best Overall Undersink RO Water Filter

One of the best water filters that work on reverse osmosis is the iSpring RCC7AK. It is a 6 stage high capacity water filter system that provides safer and healthier water to use.

It is an under-sink mounted water filtration system that also works as a water softener. More than 1,000 impurities and harmful pollutants up to 99% can be easily removed through this filter system. The incoming water pressure that it requires is 45 – 70 psi. You should check our water softeners buying guide to know more about them.

It removes sodium, calcium, chlorine, fluoride, lead, arsenic, asbestos, bacteria, viruses, and other different contaminants from the water to make it drinkable and usable.

It comes with a complete 6 filter set, pressurized 3.2-gallon storage tank, and a brushed nickel all-metal faucet. The filters include PP Sediment, GAC granular activated carbon, CTO carbon block pre-filters. Other than this, there is an RO membrane, inline post carbon filter, and the mineral alkaline filter.

This water filtration system is different from the regular 5 stage RO system where the essential minerals get removed from the water. But here, the sixth stage which uses an Alkaline Remineralization filter recovers the essential and healthy minerals to provide balanced alkalinity and natural taste of water.

The best thing about this under sink filtration system is that it is easy to install. You can install it by yourself in a few hours. The instructions are clear and easy to follow, and high-quality videos make installation easier.

Other than this, all the components that are included in this water filtration system are of excellent quality. This enhances the reliability of the product and makes it maintenance free.

2. APEC Water Systems RO-90 Ultimate Series Reverse Osmosis Drinking Water Filter System – 5-Stage RO Water Filter

Another reverse osmosis water filtration system in the list is the RO-90 from APEC Water Systems. It is a WQA Gold Seal Certified product that ensures the quality, durability, and safety of the users.

It is a 5 stage water filtration system that removes more than 1000 contaminants up to 99%. It removes heavy metals, chlorine, fluoride, lead, arsenic, bacteria, viruses, and more to provide you much safer and healthier water as compared to the bottled water.

There is no need to waste your money on bottled water when you have this filter system at home. It includes a complete 5 filter set, water storage tank, lead-free chrome faucet, and accessories. The first filter is the sediment filter, the second and third are the super capacity carbon block filters, fourth is the RO membrane, and the last stage of purifying water includes coconut carbon filter.

These super capacity filters have an excellent contaminant removing capacity as compared to the smaller and low capacity filters. Also, you won’t need to change the filters frequently.

The filter system is also easy to install. The JG Quick Connect fittings make hassle-free installation and leak-free operation.

3. Home Master TMAFC-ERP Artesian Undersink Reverse Osmosis Water Filter System – 7-Stage RO Water Filter

The Home Master offers you a standard style w/pump that works on a reverse osmosis system. It has a 7 stage water filtration process that removes different contaminants and improves the quality of water.

It has an innovative design that works best as compared to many traditional RO systems. The canister filter housing design of the various RO systems makes them less durable and full of maintenance where you can’t change the filter housings, only the filters. But, this product is designed in such a manner where the filter housing carries a filter, and the whole filter is disposable. It removes different chemicals and other impurities from the water up to 98%.

The best thing about this filter system is that it adds the required and essential minerals into the water to improve its taste. During the purification process, calcium and magnesium are added twice to make water tasty and healthy.

Another noticeable thing in this product is that it has a built-in non-electric permeate pump that prevents water wastage up to 80% and produces 50% more water.

Also, the filters work effectively for long. You may require changing them after 2000 gallons of water production. Moreover, these filters are easy to change without a need for a tool.

4. Aquagear Water Filter Pitcher – 150 Gallons Water Filtration Capacity

This Aquagear Water Filter Pitcher is made in the USA. It has an excellent design that enhances the sustainability of the product. The filter meets the NSF 42 and 53 standards for the removal of impurities that present in water. The materials used in the construction of the pitcher are 100% FDA approved food-grade materials.

It features triple capacity high-end filters that work effectively to remove water contaminants and produce 150 gallons of fresh and clean water for drinking. Also, these filters have a great life span.

The water filter removes many of the contaminants such as lead, fluoride, copper, mercury, chlorine, chloramines, and more. It works on a five-stage filtration process to remove harmful impurities.

The smallest filter layer features 2-micron pores that make the water clean from different contaminants that many filters miss. Also, it doesn’t remove calcium and magnesium.

It also removes bad smell from water to provide the healthiest and safest water to use. Also, the water pitcher offers a lifetime guarantee.

5. AquaBliss 10-Cup Water Filter Pitcher – 80 Gallons Water Filtration Capacity

This AquaBliss water filter pitcher has a sleek, low profile design that makes it easy to place into a refrigerator. Also, it takes very little space on the countertop. It provides clean and tasteful water free from various contaminants, including zinc, copper, mercury, chlorine, cadmium, sediment, and others. It also removes bad odors caused due to various metals present in tap water.

This BPA free product is the fastest and easiest to use. It provides 10 cups of water at a time. All you need is to fill the pitcher with the unfiltered water and then see the magic of this filtration system. You don’t need to remove the lid as the flip-top on the lid allows you to fill the water without removing the lid.

It has an excellent water filtration capacity. The filter installed works longer than many of the available pitchers in the market. It can filter up to 80 gallons of water or work for about four months. But the filtration capacity depends on the type of water you are getting.

This water filter pitcher comes with a one year warranty. Also, the company offers a full money-back guarantee.

6. Brita 10 Cup Water Pitcher – 40 Gallons Water Filtration Capacity

This Brita water filter pitcher produces 10 cups of fresh and clean water at a time to fill the drinking needs of your family. It has a clean design, made up of good quality plastic and large enough to meet the needs of families. Also, it can easily accommodate inside most of the refrigerators.

It is a BPA free product that uses one standard filter to make the tap water usable and safe for drinking. It reduces chlorine, mercury, copper, cadmium, and other impurities found in tap water. Also, when the chlorine level gets reduced, the taste and odor of the water get enhanced.

The pitcher also features a filter indicator that makes you know when your filter must be replaced. You must have to replace the filter after almost every two months or after cleaning 40 gallons of water.

Other than this, a flip-top lid makes refilling and pouring easier. Also, the soft-grip handle makes handling easier.

7. New Wave Enviro 10 Stage Water Filter – 10-Stage Countertop Water Filter

The lightest water filter system that is ideal for homes is the New Wave Enviro. It is a 10 stage filter system that works well to remove various common impurities found in tap water in a significant amount.

It is a space-saving filter that installs next to your kitchen faucet to provide you clean and clear water every time you open the tap. You can easily switch between the filtered and tap water when needed.

This water filter takes care of your health and provides you the healthiest water free from chlorine, lead, mercury, organic arsenic, inorganic arsenic, pesticides, and others.

It is also effortless to install. It will just take your few seconds. All you need is to attach it with your faucet, and here you go. Also, you can install it under the sink with the help of the Enviro kit.

8. Nakii Water Filter Pitcher – 150 Gallons Water Filtration Capacity

This Nakii water filter pitcher has a compact and convenient design that can easily fit in most of the fridge doors. It features a simple pour spout so that you can easily pour clean water into glasses. Moreover, an easy-to-fill lid makes it easy to refill the pitcher.

It has a large water holding capacity that is 1.8 liters of fresh and clean water. Also, the filter system has a fast filtration process. 1.3 liters of water can be easily purified in a minute.

This Nakii filter system uses the Nakii filter to remove different contaminants from water. The filter features Activated Carbon Fiber (ACF) for the removal of various pollutants. Its adsorption is much more superior as compared to the other carbon filters.

It makes the water soft and free from mercury, chlorine, rust, and suspended particles. These contaminants change the color and odor of the water, so after their removal or reduction, the water gets back into its original color and odor.

Also, the life span of the filter is excellent. After producing 150 gallons of clean water, you may require to change it.

9. Home Master TMJRF2 Counter Top Water Filtration System – 3-Stage Countertop Water Filter

Another simple yet effective countertop water filters on the list is from Home Master. It has a space-saving design that only takes a little space next to your kitchen faucet. You can also take it anywhere to install in your office or rest house.

The installation of the filter is also straightforward. No plumbing is required. All you need is to connect it with your tap to get clean and fresh water every time.

This filter has a 3 stage filtration process that removes chlorine, fluoride, and other chemicals up to 93%. But the best thing is that it doesn’t remove the essential minerals that are calcium and magnesium to offer you healthy water along with great taste and odor.

The product uses a granular filter, but it is more advanced as compared to other granular filters. It ensures even filtration to provide the healthiest and cleanest water. You may require changing the filter after producing 500 gallons of clean water.

10. Big Berkey Gravity-Fed Water Filter – 6,000 Gallons Water Filtration Capacity

This large size water filtration system from Berkey features two stainless steel chambers to store water and a pair of Black Berkey purification elements for the purification of tap water. It is 19.25 inches in height and 8.5 inches in diameter.

With 2.25-gallon water storing capacity, the filtration system provides clean and healthy water and meets the water needs of 1 to 4 people each day.

The Black Berkey purification elements offer the most powerful water purification. They remove more than 99% of viruses, bacteria, inorganic minerals, protozoa, pharmaceutical drugs, and other contaminants.

This Big Berkey system comes with two purification elements, but you can add two more to increase the flow rate. These water purifiers are quite long-lasting. Each pair of filters can filter up to 6,000 gallons of water before the replacement need. So, it means a pair of filters can work for several months, even if you have a big family.

Its steel chambers are assembled in the USA, and the purification elements are both made and assembled in the USA.

For more gravity water filters check this guide.

11. DuPont WFFM100XCH Premier Faucet Mount Drinking Water Filter – 100 Gallons Water Filtration Capacity

This DuPont WFFM100XCH is another simple and easy to install a filter system that gets attached to the standard kitchen faucets to provide the best-filtered water every time. It not only enhances the color and odor of water but also improves its taste.

This faucet water filter features only one filter that is quite capable enough to remove certain impurities from water in a specific amount. It reduces lead, mercury, chlorine, linden, benzene, cysts, and asbestos to offer improved quality water.

It is a faucet mount filter when it gets attached looks like the part of a kitchen faucet. The filter used has a decent life span. After 100 gallons of water production, you may need to replace it.

Other than this, it also features Micro ban Antimicrobial product protection the takes care of the filter, enhances its performance, and increases its life.

12. Culligan FM-15A Faucet Mount Filter – 200 Gallons Water Filtration Capacity

Another faucet mount filter on the list is from Culligan that is NSF tested and certified. It meets and exceeds the NSF Standard 42 and 53.

The filter is quite easy to use and install with no requirement of tools. It has an adapter that makes it fit most of the standard faucets. It also features a diverter tab that allows you to switch between filtered and tap water when needed. Also, you can easily place a cartridge inside the filter.

It features an advanced FM-15A filter that turns bad water taste into good and improves the odor along with reducing chlorine, lead, atrazine, turbidity, and particulates. Also, it can provide optimum performance up to 2 months or 200 gallons of water production.

One thing that you should note is that this filter does not work with the drop-down faucets. If you have one, then either replace the faucet or go for the other filter system. Also, the filter is not able to handle large amounts of water.

13. PUR FM-3700 Advanced Faucet Water Filter – 100 Gallons Water Filtration Capacity

This FM-3700 faucet mount water filter from PUR is also quite easy to install and use. Just use the faucet adapter and connect the purifier with your kitchen sink tap. The on/off lever allows you to select between the filtered and unfiltered water. And the CleanSensor monitor helps you to keep an eye on the condition of the filter.

Its powerful water filtration system reduces over 70 harmful contaminants from tap water, including chlorine, mercury, and lead. The filter installed use activated carbon filter and ion exchange process to make water free from various impurities. The filter filters the water through three different stages to offer the purest and cleanest water.

The filtered installed has a good life span. It can provide 100 gallons of filtered water before you need a replacement. When required to replace the filter, make sure you are replacing the old filter with the new PUR faucet filter; otherwise, you will fail to get the desired results.

We are going to talk about different factors that need your consideration before purchasing a water filter system. And then, you will find the list of top 13 water filters. So, let’s begin.

Buyer’s Guide

The first thing that you must decide before purchasing a filter system is what type of filter you want to install. Determine your needs and the quality of tap water you are getting.

Filtration Stages

The higher the number of filtration stages, the more effective the water purification will be. But it also depends on the type of water filter you are selecting. RO water purification systems feature 5, 6, 7, or more filtration stages, whereas countertop and faucet-mount filters usually feature 3-stage filtration.

Water Filtration Capacity

The water filtration capacity also differs according to the type of filter. Big units or RO filters can filter up to 1000 to 3000 gallons of water with ease. But the systems like Big Berkey have filters that can filter up to 6,000 gallons of water.

Water filter pitchers can filter up to 200 gallons of water. Also, faucet mount filters can filter between 100 and 200 gallons of water.

Flow rate

You should also check the flow rate to get the best flow rate according to the type of water filtration system.

There are four different types of water filter systems available. One is under-sink water filter systems, second is water filter pitchers, third is the countertop water filter, and the fourth one is the faucet-mounted filter.

So, it is necessary to look at every filter type so that you can easily find out which one would be suitable for you.

Under-Sink or Reverse Osmosis Filter Systems

These Under-Sink or Reverse Osmosis Filter Systems are ideal for removing most of the contaminants present in tap water. They are perfect for homes where the tap water comes in bad condition. They improve water taste, remove the smell, enhance its color, and also add or keep essential calcium and magnesium ions in the water. They are costly, but in the long run, they will provide you various benefits.

Carbon-Based Water Filter Pitchers

These water filter pitchers are the compact size water filtration systems that can be easily fit in most of the refrigerators’ doors. Also, you can place them at the kitchen counter-top for pouring and refilling easily. These pitchers feature one multi-stage filter that works effectively to improve the quality of water to make it healthy and safe for drinking. But, you must have to replace the filters every two to three months for optimal performance.

Countertop Filters

These types of filters are also the best space savers. They are installed next to the kitchen faucets to provide you clean water free from various contaminants. They also keep the essential minerals in water that are calcium, magnesium, and potassium. These products feature multi-stage filters that work for long and can filter large amounts of water. You can also take them anywhere.

Faucet-Mounted Filters

They are best for removing chlorine and other heavy metals from the incoming water and improve water taste. But the main problem with these filters is that they are not compatible with all types of faucets. Also, they slow down the water flow.

Other than this, if you are purchasing a Reverse Osmosis Water Filter System, then look at the number of water filtration stages it features. Also, make sure that it is easy to install, and the installation instructions are easy to follow.

If you are going for a Water Filter Pitcher, then look at its construction material, how many cups of water it can filter at a time, and the life span of the filter installed. Also, it must be designed in such a way that you can easily refill and pour water from it.

For the Countertop Water Filter, verify that it is easy to switch between the filtered and non-filtered water. Also, look at the life span of the filter.

And for the Faucet-Mounted Filter, ensure that it is made for the type of faucet you have.

Whole House Filters

Backpacking and Outdoor Filters