7 Best Water Filters That Remove Arsenic And Other Contaminants

water filters that remove arsenic

Arsenic in water is a serious concern for many communities worldwide. It is a highly toxic substance and can cause serious health problems. To help tackle this, we will list the top 7 water filters that remove arsenic.

Investing in a water filter that removes arsenic is an easy way to ensure that your family is drinking clean & safe water. These water filters come in various shapes and sizes; some are larger and more effective than others. 

Here we will look at the best water filters that remove arsenic, how to test your water for arsenic and how to remove arsenic from water.

Things To Keep In Mind Before Purchasing The Best Water Filters That Remove Arsenic


The things you need to know before buying the best water filters that remove arsenic are as follows: 

  • Common filtration processes like activated carbon adsorption do not remove arsenic.
  • Consider your budget, water quality, preferred installation, and maintenance.
  • You can expect at least 95%+ arsenic reduction with the best arsenic removal system.

Comparison of Best Water Filters That Remove Arsenic






Crystal Quest Big Blue

Whole house water filter, 4-6 Gallons per minute flow rate, Up to 99% ability to remove arsenic


4.5 / 5 

Clearly Filtered 3-Stage

Under sink water filter, 94.3% ability to filter arsenic, 75% more efficient than typical RO systems


4.5 / 5 

Waterdrop G3P800

9 stages of filtration, 1000+ contaminants removal, Under sink installation method


4.7 / 5 

Crystal Quest

Whole house water filter, 3-stage filtration process, Up to 99% ability to remove arsenic


4.5 / 5 

Clearly Filtered Water Pitcher

Eliminate more than 365+ water contaminants, One filter cartridge serves 100 gallons of water, Tritan plastic material is 100% BPA-free


4.5 / 5 

Big Berkey with PF-2 Filter Elements

Removes different water contaminants, Durable and food-grade 304 stainless steel, >99.9% ability to removing arsenic


4.4 / 5 


Arsenic 5 (>98%), Arsenic 3 (50-80%) reduction, Carbon filter block reduces organic contaminants, Built-in pump increase water pressure for fast filtration


4.4 / 5 

Let us explore each of the listed best water filters that remove arsenic.

Best Water Filters That Remove Arsenic You Can Buy.

1. Crystal Quest Big Blue

Fit for people living in a 1 to 2-person household


  • Whole house water filter
  • 4-6 Gallons per minute flow rate
  • Up to 99% ability to remove arsenic
  • Easy to install
  • 1-year warranty



+ 1 arsenic filter cartridge lasts 60,000 gallons
+ Floor mount stand for increased durability
+ Requires no electricity & no backwashing
+ Easy install, use, and change cartridge
+ High-quality product
+ Responsive support team
– Cost for replacement filters is high

Individuals or couples living in the same household should look at Crystal Quest’s Big Blue water filter system. This filter utilizes filter cartridges in place of a big mineral tank which is why the initial price is significantly lower.

Unfortunately, the amount of water available restricts to 4-6 gallons every minute, which is inadequate for households with three or more occupants. 

The filter cartridge must be changed every 60,000 gallons to ensure that arsenic is removed from the water. This would roughly cost around $260 for each cartridge, once a year for a two-person family.

If you’re considering water filters for long-term usage, it is cost-effective to spend your money on the Crystal Quest Arsenic Whole House Water Filtration System.

2. Clearly Filtered 3-Stage

Built for homeowners and renters


  • Under sink water filter
  • 94.3% ability to filter arsenic
  • 75% more efficient than typical RO systems
  • Removes 232+ contaminants
  • Easy installation process
  • 2000-gallon filter life
  • Lifetime warranty



+ Met the requirements of NSF/ANSI standards
+ Hoses are made of durable stainless steel for longevity
+ Portable, space-saving design
+ Compatible with any sink
+ Requires minimal maintenance
+ Offers exceptionally clean water
+ 3-stage filtration process
+ Easy to install
– Water pressure is likely to decrease by 15-25%

Clearly Filtered 3-Stage model stands out as the top choice for installations under sinks. It is perfect for water filters specifically designed to filter out arsenic.

This product has been examined in a laboratory setting against NSF guidelines to eliminate 94.3% of all arsenic and more than 200 other hazardous components that should not be present in your drinking water.

Generally, filtration systems used in sinks typically do not eliminate enough pollutants, exposing you to ailments, diseases, and other hazards that come out of the tap. Alternatively, they may strip away valuable minerals as well. 

Switch to Clearly Filtered now, and you can get clean water from your existing faucet without hiring a plumber, installing a tank, or adding a separate tap.

3. Waterdrop G3P800

High-quality, crisp, clean, tasting RO system


  • 9 stages of filtration
  • 1000+ contaminants removal
  • Under sink installation method
  • Reverse osmosis purification method
  • Corded electric power source
  • 800 GPD flow rate
  • 1-year warranty



+ Third-party tested for up to 90% TDS removal
+ Great little on-demand space-saving RO
+ Sleek, futuristic, integrated design
+ Extensive 9-stage filtration
+ Tankless, on-demand system
+ Consists of intelligent features
+ Super easy to install
– Costly for some people

If you are looking for the finest system to eliminate arsenic from drinking water, the Waterdrop G3P800 should be your go-to option.

This system installed beneath a sink provides all the advantages of a reverse osmosis water filter. An independent agency has inspected it to take out more than 90 percent of all the dissolved solids, including arsenic. 

In addition, this type of filter is more slender, slim, and intelligent compared to most other reverse osmosis filters installed under sinks.

In the pre-filtration process, water flows through 20” sediment cartridge that take out silt, sand, sediment, and dirt. 

On the other hand, in the post-filtration process, water flows through 20″ solid carbon cartridge that takes out volatile organic carbon compounds (VOCs), & remaining insecticides, pesticides, and industrial solvents.

4. Crystal Quest

Best for people looking for a whole house water filter


  • Whole house water filter
  • 3-stage filtration process
  • Up to 99% ability to remove arsenic
  • Stainless steel or fiberglass material
  • Automatic backwash
  • Easy installation
  • 1-year warranty



+ Available in 2 whole house water filter sizes
+ Stainless steel casings for durability
+ Water softener to tackle water hardness
+ Easy and clear to install with solid instructions
– Expensive

Crystal Quest arsenic water filtration system is the best water filter to remove arsenic in 2023. This is because the iron oxide-based filter media can reduce nearly all of the arsenic in water, potentially even below detectable thresholds.

This water filter utilizes 7+ proprietary filtration materials to make multiple stages of filtration.  It removes 365+ harmful and dangerous tap water contaminants.

The pitcher comprises 100% BPA/BPS-free, medical-grade Tritan materials. It doesn’t leach chemicals or emits odors or bad taste into your filtered water. The slim-design pitcher is designed to hold 80 ounces of water.

5. Clearly Filtered Water Pitcher

Best budget-friendly water filters that remove arsenic


  • Eliminate more than 365+ water contaminants
  • One filter cartridge serves 100 gallons of water
  • Tritan plastic material is 100% BPA-free
  • 98.3% ability to remove arsenic
  • 80-Ounce (10 cups) capacity
  • Water pitcher filter
  • Built-in water dam
  • Lifetime warranty



+ Offers healthy and excellent-tasting drinking water
+ 10-cup water storage volume is suited for family use
+ Removable lid for easy refilling
+ Needs minimal maintenance
+ Quick to assemble
– Pricey

Clearly filtered water pitchers remove up to 99.9% of 365+ harmful & dangerous tap water contaminants. It removes Lead, BPA, Fluoride, PFOAs, Glyphosate, Hormones, and over 365 of the most harmful tap water impurities.

This water filter comprises 100% BPA/BPS-Free medical-grade Tritan materials.

The slim-design pitcher holds 80 ounces of water, more than an average person should drink in one day for optimal hydration.

6. Big Berkey with PF-2 Filter Elements

Ideal for home use and prepping


  • Removes a wide range of different water contaminants
  • Durable and food-grade 304 stainless steel
  • >99.9% ability to removing arsenic
  • Offers 3,000 gallons of purified water
  • Gravity system water filter
  • Lifetime warranty



+ Rubber gasket prevents countertop surface scratching
+ Great for 1-4 people
+ Amazing taste of the water
+ Easy to assemble
– Drinking water dispenser might leak

If you’re looking for a countertop or gravity arsenic removal system, then Big Berkey is a perfect choice. It is an ideal size for 2-4 people.

The Big Berkey system is made up of highly polished 304 stainless steel. It has 2 Black Berkey purification elements (expandable to 4), 2 chambers, a lid, a spigot, a rubber gasket base, and 2 blocking plugs.

It can be fed from any freshwater source, including ponds, streams, and lakes, and offers potable water of exceptional quality. The water tastes great and meets the drinking water standards.

This water filter combines PF-2 filter elements to achieve more than 99.9% arsenic reduction.

7. AquaTru

For people who want an RO system that is compact, and really effective


  • Arsenic 5 (>98%), Arsenic 3 (50-80%) reduction
  • Carbon filter block reduces organic contaminants
  • The built-in pump increases water pressure for fast filtration
  • System processes 1 gallon in 10-15 minutes
  • Only BPA and BPS-free plastic used
  • RO system filter
  • 1-year warranty



+ Outstanding test results guarantee pure drinking water
+ RO water collects in the front tank for easy dispensing
+ Removable for cooling in the refrigerator
– Design issue may cause leaking

AquaTru removes contaminants linked to dangerous chronic health conditions and, as a result, creates fantastic-tasting water. You no longer have to drink and cook with water that reeks of chloramines. It surpasses NSF Standards and is certified to remove 82 contaminants.

Aquatru’s 4-stage reverse osmosis filtration is so effective that it removes petrochemicals, PFASs, pesticides, and pharmaceutical residue. But like all RO systems, it also removes essential mineral content.

The AquaTru filters last exponentially longer than pitcher filters and far exceed their effectiveness.

Buyer’s Guide: How I Picked the Best Water Filters That Remove Arsenic


Before you start your search for the most suitable arsenic removal system, it is essential to consider the criteria I used to select the top products for this guide.

Types Of Water Filter Systems & Their Arsenic Removal Capacities

It is relatively simple to eliminate chlorine from water. However, removing arsenic is a much more complex process.

A reverse osmosis system eliminates arsenic 5 with ease. However, disposing of arsenic 3 is a much more complex process.

Although challenging, having the ideal water filter or water treatment system is achievable. These approaches include:

  • Coagulation + filtration
  • Adsorption using activated alumina
  • Oxidation + filtration
  • Adsorption using iron oxide
  • Distillation.

Please note: Both anion exchange & reverse osmosis affect levels of arsenic 5 in water.

When considering a water treatment system, it is necessary to figure out whether you prefer to have the treatment done at a single point (POU) or throughout the entire house (POE). POU filtering offers filtered water only at a designated tap, such as a kitchen sink, while POE is a term used to describe a system that treats water for the entire home.

If your only purpose is to eliminate arsenic from your drinking water, the most obvious option is to purchase a reasonably priced water filter for your sink or countertop. In this situation, you will not be able to use any other tap in your house to get water.

If you are determined to have a complete water filtration system for your home, you should be willing to put more money into an efficient water purification solution.

Filtering other water contaminants

It is improbable that arsenic is the only pollutant in your water source. Therefore, consider installing different filtration systems to get rid of other kinds of water contaminants.

Flow rate

When water filtration is for the entire residence, ensure that the system can accommodate your water usage even during maximum usage.

If you don’t take precautions, you may experience a decrease in water pressure when you simultaneously turn on more than one water source.

Filter life & maintenance

If your arsenic removal system has a longer lifespan, you will have to spend less time and money on its upkeep.

When selecting a filtration system, the Crystal Quest Arsenic Whole House System is the superior option as it only requires the pre-filter and post-filter to be changed every 12-18 months.

Your budget

Consider the cost of long-term items, especially fresh filter cartridges, when working out your financial plan. Usually, the expenditure is greater than the initial cost of a water filtration system.

How To Test Your Water For Arsenic

The quickest method to determine if arsenic is present in your tap water is to consult the Environmental Working Group Tap Water Database. Enter your zip code & you will see a list of suppliers that serve your area & the surrounding county. Then, click the name of your utility to learn about all the contaminants detected between the years 2010 & 2015.

One way is to contact your supplier directly & ask for a free Water Quality Report.

Another way is to reach out to your local health department. The staff will help you know whether arsenic is a problem in your area.

If you want to be entirely sure of the quality of the water, get it examined by a certified lab. You can also do the testing yourself. A variety of test kits available on the market allow easy, cheap, fast, & relatively accurate testing.

Bonus Tip: Look for kits with beneficial arsenic detection levels like 1, 2, 3, 4, 5, 10, 20, and 50 ppb.

How To Remove Arsenic From Water


It is known that a huge number of US citizens are drinking water with arsenic regularly, whether it is from the tap or a contaminated well. It seems like an effort to figure out how to remove this toxin from your home water supply.

It is essential to differentiate between arsenic 3 and arsenic 5 when looking at the water supply. Most filtration systems should be able to eliminate arsenic 5 without too much difficulty.

However, arsenic 3 is more soluble in water, making it necessary to take a more detailed approach. Other points to take into account are the rate of the flow of water and the presence of other pollutants, mainly iron.

Keeping in mind that the purpose is to lessen your consumption of arsenic from drinking water, the following water treatment processes can help to reach that goal: 

  • Oxidation + filtration – Iron removal processes help to get rid of iron & arsenic for iron levels above 0.3 ppm & an iron-to-arsenic ratio of at least 20:1.
  • Coagulation + filtration – Coagulation followed by filtration is excellent for iron levels above 0.3 ppm & an iron-to-arsenic ratio of less than 20:1.
  • Adsorption using iron oxide – Unique for iron levels below 0.3 ppm.
  • Adsorption using activated alumina
  • Anion exchange – Unique for iron levels below 0.3 ppm. Arsenic 5 only.
  • Distillation
  • Reverse osmosis – For Arsenic 5.

You should test the water quality periodically to detect the levels of arsenic to ensure timely filter media replacements.

Oxidation + Filtration

It is an iron removal process and works for arsenic removal too.

The initial step involves transforming Arsenic 3 into Arsenic 5 with the help of chemical elements like chlorine, ozone, or potassium permanganate. As these components have strong oxidizing potential, the contact period does not play a significant role.

The material used for filtration can be sand, sand combined with coal anthracite, or other products like Pyrolox, Birm, and manganese greensand. This material needs to be backwashed to function correctly.

Coagulation + Filtration

It is a prevalent & effective method for getting arsenic-free water.

Adding metal salts, mainly iron, to the water causes the arsenic material to attach to the additive. This generates larger, solid particles that can be pressure-filtered. Cleaning the filter in this way necessitates backwashing.


Subsequently, I have adsorption media filters, the usual practice for removing arsenic.

Iron Oxide

A large tank containing iron (hydr)oxide-based granules with tiny pores functions similar to a carbon filter, trapping arsenic within its surface.

In addition to titanium, other composite substances with iron-embedded resins are also very effective.

The media bed filter material eliminates arsenic, but it must be replaced regularly.

Activated Alumina

Activated alumina (commonly referred to as AA) is highly proficient at taking out pentavalent arsenic, but it can eliminate both arsenic 3 and 5. It has a remarkable capacity to decrease arsenic levels by over 95%.

Another advantage of using activated alumina is its ability to take out any trace of fluoride that may have been put in your drinking water, which could be a worry for some. Moreover, working with activated alumina is convenient since there is no need for wastewater disposal or backwashing.

The Berkey, a well-known filter based on the principle of gravity, illustrates a water-purifying device that employs AA to eliminate arsenic.

Anion Exchange

An anion exchange system works similar to a water softener. It includes a container housing a resin bed, which removes arsenic from the water in its pentavalent state.

As liquid moves through the container, the arsenic substitutes the chloride particles linked to the resin, and this exhaustion process continues until it reaches its limit.

The resin must be backwash using a very concentrated sodium chloride solution to regenerate itself. The chloride will displace the arsenic molecules trapped in the resin, which will be flushed away in the wastewater.


Distillation offers the cleanest water of all purification methods. Initially, the water is heated up to its boiling temperature. As it evaporates, it discards virtually all impurities, including both types of arsenic, and then cools down in a condenser, transforming back into its fluid state. Finally, the water is stored in a different container.

Reverse Osmosis

Reverse osmosis removes arsenic from water. According to research, a 98% decrease in arsenic (V) concentration is achievable. Nevertheless, this only applies to As(V). On the other hand, reverse osmosis water purification can eliminate arsenic (III) to the extent of 50-80%.

To eliminate As(III) entirely, it must be pre-oxidized and converted to As(V). This extra measure, however, will raise both the cost and the difficulty of installing this system.

FAQs (Frequently Asked Questions) On Water Filters That Remove Arsenic

1. Can arsenic be filtered out of water?

The most cost-efficient way to eliminate arsenic from a private water source is reverse osmosis (RO). This method is like a form of filtration on a molecular level. The process forces the water through a particular membrane that allows many substances to pass through.

2. Does water filter remove arsenic from water?

An arsenic removal filter uses an adsorption medium to cleanse groundwater/surface drinking water polluted with arsenic. It provides clean drinking water without primary pollutants such as arsenic and other trace toxic elements to a certain extent.

3. Does Brita filter remove arsenic?

Brita filters are not certified to eliminate arsenic, and the Standard filter does not remove a considerable amount of Arsenic. In contrast, the ZeroWater pitcher is a much better choice for the removal of arsenic.

4. Does a charcoal filter remove arsenic?

Carbon block filters can eliminate many pollutants, including lead and other heavy metals. In addition, these filters are effective in eliminating microbial agents and waterborne pathogens from drinking water. The most effective carbon block filters can even rid drinking water of pollutants such as arsenic, asbestos, mercury, and radon.

5. Does a refrigerator water filter remove arsenic?

If you are trying to eliminate contaminants such as Arsenic, Fluoride, Nitrate, Nitrite, Barium, Selenium, and Radium, the majority of refrigerator filters won’t be able to do that.

6. Does carbon remove arsenic?

Whether it is activated or catalytic carbon filtration, neither of these techniques can effectively eliminate arsenic from the water supply. Their removal capabilities are not adequate for this purpose.

7. Do Brita water filters remove arsenic, and how about PUR?

Brita says their well-known water filters cannot reduce the amount of arsenic present in pitchers, dispensers, or faucet units. Unfortunately, this is also the case with PUR filters.

8. Does boiling water remove arsenic?

Sadly, neither heating nor boiling water will get rid of arsenic. On the contrary, evaporation can lead to a greater concentration of arsenic in the water.

Summary: Water Filters That Remove Arsenic


Arsenic is a toxic element that can contaminate drinking water, leading to severe health issues. Fortunately, water filters that remove arsenic are now available, making it possible to ensure that drinking water is safe from this dangerous element.

These filters are easy to use and maintain. They are ideal for homes and businesses that need to ensure their water is free from harmful contaminants. With various types and sizes available today, finding a water filter that removes arsenic is easier than ever. 

From reverse osmosis systems to activated carbon filters, many water filter options are available to keep arsenic out of your drinking water. With the best arsenic removal system, you can expect at least 95%+ arsenic reduction.

I hope this article on the best water filters that remove arsenic sounds helpful!

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