ZeroWater vs Brita vs PUR: Water Filter Comparison and Reviews for 2020

When it comes to drinking water, there’s no other way for you to make this happen but to ensure that you have clean and potable water. Water is life’s utmost necessity, and there are no other alternatives for this. While most people have adequate supply to tap water, it is not actually considered as safe drinking water. Sure, you can use this for washing your hands, showering, or washing the dishes, but other than that, tap water won’t do any good for your health unless it’s filtered.

You might have come across the term water filters, or you might even have some experience with this. Here are the things that you need to know about water filters – Importance, Benefits and how to choose between ZeroWater, Brita and Pur( the three of the famous water filter brands that you can get for your home filtration system ).

Table of Contents

What Are Water Filters?

A water filter, basing from the name itself, is a physical barrier that should be enough to filter out any impurities that come along with it. The premise is that tap water, although it’s more than enough to use for cleaning and other sanitation purposes, contains large particles as impurities that, when ingested in large amounts, won’t be healthy for the human body. The answer to this will have to be the water filters. It works in a sense that the more effective the water filter is, the more impurities that it is set to sieve, leaving a reasonably safe-to-drink filtered water.

Importance of Water Filters

You might think that having your water filtered isn’t really an important step or that it’s more of a luxury than a need. However, that’s not the case since you and your family’s health is at risk. To know more, here are the reasons why you should filter your tap water:

Better Tasting Water

Believe it or not, water has a taste. You might notice this most, especially if you're accustomed to drinking water. Not only filtered water can remove impurities; it will also improve its taste. Since taste and odor jas high correlation, it can be said that the smell of the water is affected as well. Filtering tap water will also remove chemicals such as chlorine, pesticides, bacterial contaminants, and heavy metals that all come with it. After filtering your tap water, you can expect that you have water that tastes even better than what you were once accustomed to.

Reduced Risk of Illness

Who says that sand, silt, and sediments are right for your body? Most especially if it came from a water reservoir that you aren't that sure what's in there. So why would you risk your health ingesting impurities? Research says that water filters reduce the risk of getting health-related issues such as illnesses and specific cancer such as colon, rectal, and bladder cancer. Getting rid of the water that has chlorine on it and certain by-products will reduce your risk. Chlorine is also one of the harmful chemicals that may be removed by using water filters.

Removes a Lot of Water Contaminants

Of course, the main goal of water filters is to get rid of the contaminants that are in the water. Such pollutants are chlorine, chemicals, and other volatile organic compounds which won't be of any use to your body.

Maintains a Balanced pH

The pH of your water ( also known as its degree of acidity ) is also an important thing that you certainly shouldn't miss on. The rule is, the optimal pH that you should be looking for is not too low (acidic) and not too high (essential). The average pH value should be from at least 6 to 8.5. Any other value lower or higher than that is considered to be detrimental to your health. Water filters maintain the pH at an optimal level that is safe for you to drink.

Removes Bacteria

The last thing that you would want to have on your drinking water are bacteria that will be harmful to your health. Some of the common bacteria that can be found in tap water and can be filtered by water filters are giardia, cryptosporidium, and E. Coli. Upon ingestion of these bacteria, you can feel mild to moderate symptoms such as diarrhea and high-grade fever. The point is, if you want to safeguard your health, then you should make sure that you invest in a water filter that you know will be getting the job done.

Helps Improve Immune Systems

Water is an essential day-to-day need that every person in your household should have. Most notably, for children, drinking clean and filtered water will help boost their immune system. The reason for this is because water filter is known to act as the last line of defense against harmful toxins.

How Do These Filters Work?

Now that you’re familiar at least with what water filters are, the next thing that you have to understand is how it works. This is the general principle regardless of the brand, whether it may be ZeroWater, Brita, or PUR; the same mechanism works for all water filters.

There are two different ways to filter out these impurities. These are physical filtration and chemical filtration. Physical filtration focuses on straining the water to remove the large impurities. You can think of the water filter acting as a sieve for the dirt and larger molecules that comes with the tap water. At the same time, chemical filtration uses the principle of using an activated material, which should remove the impurities as the water passes through it. For chemical filtration, four chemicals can be included on a water filter. These are activated carbon, reverse osmosis, ion-exchange, and distillation.

When you are to choose the best water filter, make sure that you understand the principle behind it. This knowledge, albeit it can be very general and simple, will help you select which filter will be the best suitable for you.

What Do Water Filters Remove?

You might think that water filters aren’t that of necessity and that you’ve had experience directly drinking from tap water before. Yet, this doesn’t mean that you should give water filters a try. Besides, health should come above before anything else. But, what are the impurities included in your tap water?

These are sand, silt, and sediment, which are commonly found in tap water. Most of the time, the quantity of these impurities will depend on where you live. So, should you don’t want to continue ingesting such contaminants, then you should get a water filter for it.

Filtered water, may it come from ZeroWater, Brita,  PUR or alternative sources differs primarily in its taste. This means that you can count on it when it comes to removing the unwanted taste and smell. While there are a lot of people that usually rely on tap water as their drinking water, there are a lot of local reports you can retrieve, which shows how much contaminants there are present in the water. At the same time, there are also added pertinent data included like the water’s taste, color, and hardness. The thing about tap water is that yes, it is indeed ingestible. When these contaminants are ingested in sizeable amounts, there may be a significant effect on the health of anyone who ingests it.

Factors To Consider When Comparing The Products

When you are to get a water filter, you have to make sure that you first consider these things. These factors will help you in choosing which water filter will be the most suitable for you.


Water filters have their lifespan limits or their service life, too. The lifespan of a water filter will depend on its brand or manufacturer. With this, you can expect that the lifespan of a particular brand might differ from the other. Of course, the best move that you should do is to get a water filter with a longer lifespan. However, this might cost you additional dollars compared to the ones that have a shorter lifespan. Although, with that, you have to replace it every now and then. So, you do the math. Generally, the more water you consume and filter out, the shorter the possible lifespan of your water filter could be. Like any other material, the water filters wear off as it ages. Your water consumption and water filter usage are not just two of the factors that can affect the filter's lifespan. The hardness of the tap water or the water being filtered also plays out a significant role. The harder the water, the shorter the lifespan of the filter. The reason behind this is harder water has more impurities in them compared to the softer one; hence, the most likely it is to wear off sooner.

Filter Indicator

Another factor that you should consider aside from the lifespan is its indicator. These two factors almost coincide with one another as you need a filter indicator to know whether or not your filter has already reached its peak service life. Filter indicators can come in different ways. ZeroWater's water filters, for example, come with a TDS indicator. This indicator is a handheld device that you can just dip in, and it will measure how filtered your water is. The good thing about this is that you can check the resulting filtered water at any time you want. Other brands like Brita and PUR, has LED indicators included in their water filters. These indicators should light up once it's already time to change the filters. Since it's built-in and only offers qualitative feedback based on the total purity of the filtered water, you can't gauge how clean it is compared to the ones that have a TDS indicator. The good thing about LED indicators, is that you don't have to put in much effort into measuring how well it's doing, leaving you just to expect it to change its color once it's time to change the filters.

Pitcher Capacity

The water consumption of each household highly varies from one another. You might be consuming more filtered drinking water, or it can also be the other way around. Whatever it is, the water filter that you should purchase should heavily depend on how much water you take at least for a whole day. In line with this, it's also best that you consider the filtering speed. The water filter might have a lower pitcher capacity but has a breakneck filtering speed, then that's an adequate pitcher capacity even if it's rated more moderate than the usual. The key here is that you should first be able to identify the overall consumption of your household, particularly. Knowing this will help you understand what's the best pitcher capacity and filtering speed that you should buy.

Brita vs Pur vs Zero Water - Which is the best?


ZeroWater is one of the three most commonly known water filter systems in the market. It works in such a way that the principle behind it is almost a reverse-osmosis. So when it comes to the type of filtration, it is a chemical one rather than a physical one. What sets ZeroWater apart from Brit and PUR is that this type of filter deionizes the water. In effect, this should remove almost all inorganic matter, which should include other heavy metals that may be harmful to one’s health. Examples of these metals that may contaminate water are lead and chromium.

How it works

ZeroWater is known to have a 5-stage filtration system, and this is the central defining feature of this water filter. It has its five stages, which start from the coarse filtering screen, foam distributor, activated carbon & oxidation reduction alloy, ion-exchange resin, ultra-fine screen, and non-woven material. The coarse filtering screen aims to remove the large sediments and particles that may be easily sieved with a mesh-like purpose. Usually, these are the particles that can be seen in the naked eye. The goal of the foam distributor is for it to add foam to the water for more natural filtration in the next steps. The activated carbon and oxidation reduction alloy is used to remove the taste of chlorine in the contaminated water. On the other hand, the ion exchange resin also aims to remove the smell of the contaminants and will only let clean water pass through on these barriers. Finally, the water will pass through a finer screen to ensure that there will be no other minute particles.


  • 5-stage filtration process
  • Registered Ready-Pour technology
  • Comes with a free water quality meter for measuring total dissolved solids
  • "Quick Fill" spigot
  • Comfortable grip handle
  • 96 oz. water capacity


  • It is effective in filtering out the water
  • The product comes with a free quality meter, so it's a lot easier for users to really see quantitatively whether or not the filter is effective
  • Sold at an affordable price
  • It is available in different volumes, guaranteed that there's a volume for your water filtering needs
  • Water can be dispensed from the top like a pitcher or at the bottom for those who cannot lift it up


  • The performance may be inconsistent as the water filter ages
  • Water filters more slowly as the filter has been used over and over again


Brita water filters, along with its competitors ZeroWater and PUR, have a fair share of the North American market at 70%. Based on these alone, you can almost conclude that they have had a massive chunk of the market, and you’ll expect that what they have might be extremely useful. It makes only sense that they have managed to establish the brand and have forged bonds with their customers because they have been in the market since 1988. In addition to this popularity and performance of their products, it is also a product that’s loved by the market thanks to its low-cost filters. What’s great about the Brita brand is that their filters are available for different needs and sources of water. This line comes with their standard filters, long last, stream, bottle, and faucet filters. So should there be anything that you specifically need, you’re guaranteed that there’s something for you.

How it works

Like most water filters, Brita’s products aim to give you drinking water that’s clean, safe to drink, and free of any odor and taste. However, what’s different about this is that Brita standard filters only go through at least three steps to filter out the impurities that are in the tap water. The stages comprise of a built-in mesh screen to sieve the larger particles. Activated carbon is used to reduce the heavy metals and chemicals along with its taste and odor; and lastly, the ion exchange resin is used for capturing other metals which are harmful to the body.


  • Removable filter that must be replaced regularly
  • Flashing or solid colored lights
  • Calendar dials to know when you should replace the filter
  • Filters are recyclable


  • Technology-based product
  • Available in various sizes
  • Extremely affordable
  • The filters are recyclable
  • It successfully removes the harmful toxins and chemicals from tap water


  • Frequent replacement of filters (this also depends on how often the water filters are used)
  • Filtration lifespan is short compared to other brands
  • It does not filter out water that contains microorganisms such as E. Coli, giardia, and cryptosporidium which can cause an upset stomach or several illnesses when ingested


PUR’s water filter is also a common household name that’s known for its extremely effective products. Since 1986 until now, the company has managed to build a brand that’s trusted by Americans. For 30 years, they have successfully catered to the needs of the market by continuously engineering and re-engineering ways on how they can make their water filtration systems the best. Through this continuous growth and development, they have developed water filters that can reduce at least 70 water contaminants and claims that no other water filter brand that is currently available in the market can reduce more than that. Such contaminants are lead, mercury, chlorine, pollutants, pesticides, pharma, and cysts, which are ingested in substantial amounts, and may affect the human body negatively.

How it works

What sets this brand apart is that their water filters are designed to have a trademarked MAXION Filter Technology. Through this, the water filters are equipped with activated carbon and ion exchange that is set and designed to reduce more contaminants than any other brands. You might be skeptical of their claims, but as of writing, they’ve complied with the NSF qualifications as of October 2016.


  • MAXION Filter Technology
  • All PUR water filters are recycled by RecycleNation
  • Comes in different volumes
  • Made from BPA-free plastic


  • It is made from BPA-free plastic
  • Filters are recyclable and can be mailed through RecycleNation
  • Delivers high-quality water
  • Efficiently removes the contaminants in water


  • LED lights might not work
  • Limescale deposits are not filtered out
  • Filtering takes a long time to finish


When it comes to comparing ZeroWater vs Brita vs PUR, it all depends on how you’re going to use it and what’s the current situation of your tap waters are in your area. The pros and cons of each water filter brand are all highlighted above. In summary, if you’re looking for an affordable water filter that’s also effective in removing most impurities, then you should opt to choose ZeroWater. Brita, however, should be the one that you choose if you want a higher level of water filtration. PUR water filters, on the other hand, is excellent, especially if you’re looking forward to a BPA-free water filter. So really, your choice should depend on your usage. The more that you know about how you’re going to use it, the better it is for you to make an informed choice on which water filter you should get. We also researched their alkaline counterparts here if your into alkaline.

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