Best Alkaline Water Filter (+7 More With All Pros & Cons)

Alkaline water can be bought in food stores offline or online. But it might not be very cost-efficient in the long-run. (And maybe it doesn’t worth the hype at all? I’ve tried to figure it out).

Imagine buying this pack (even though it’s great!), every second day, to meet the daily needs of drinking water for a family of two. That’s a lot of money. 

So that’s when alkaline water filters come in as convenient. 

I’ve tried to cut your time on the research, so I hope you’ll find this report handy.

Are you interested in a particular topic about alkaline water filters? Then use the table of contents below to jump to the most relevant section. And you can always go back by clicking on the black arrow in the right bottom corner of the page. Also, please note that some of the links in this article may be affiliate links. For more details, check the Disclosure section at the bottom of the page. 

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Core water pH

pH is a scale from 1 to 14. It measures liquid’s acidity or alkalinity. pH below 7 is considered an acid, and anything with a pH above 7 is an alkali, or base.

Pure water pH is 7. So, water with a pH lower than 7 is called acidic, and greater than 7 – basic. This text is a property of The “healthy” range for pH in our surface water systems has to be 6.5 to 8.5, and between 6 and 8.5 for the groundwater systems.

And just to paint a clear picture of why it does matter… If we are talking about natural sources of water, like ponds and rivers, at 4.9 to 4.0 pH level fish reproduction system is affected and at 3.0 – adult fish die.

Yes, humans are not fish, of course, but if something kills fish, it can’t be particularly good for us. 

Still, tap water in the U.S. tends to fall below the levels considered normal – it’s in the 4.3 to 5.3 range – depending on where you are based.

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What does acidic water do to your body?

The pH of water can make some minerals more or less available to the body. So heavy metals in acidic water appear to be more harmful because they are more readily available to the body.

High pH should make heavy metals less available and thus less toxic. Low pH water can corrode metal pipes and draw metal ions into the water, rendering it dangerous to drink or use at home.

Research shows that consumption of acidic drinks, such as soft drinks and sports drinks, is connected with the number of cases of dental erosion.

Most soft drinks are very acidic, with pH levels ranging from 2 to 4. When you put your teeth in contact with such acid liquids they are prone to demineralization. 

Acidosis is a disease of increased concentration of hydrogen ion in blood and body tissue. It occurs when the pH of the artery falls below 5.55.

Harmful effects of acidosis may include increased bone resorption and reduced osteoblast function. And that’s just a couple of names.

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How to make alkaline water?

Of course, even without filters, you can make your own alkaline water. 

You can use lemon juice, for example. Lemon is acidic in nature, but has a pH level below 7. When applied to water, ingested and completely metabolized, its role is alkalizing and raises the pH level in the body above 7, which is alkaline.

That’s mostly why we’re told to kick off our mornings with a glass of lemon water.

Adding a half of a tablespoon of baking soda to a gallon of water is another way to make it more alkaline.

But if you want your drinks not only to be alkaline but also properly cleaned and remineralized, then you’d better opt for a decent alkaline water filter. 

It will save you loads of money in the long run and hopefully make a better impact on your health.

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Pros and cons of alkaline water


  • A few studies suggesting alkaline water can improve the health of people with certain medical conditions, such as acid reflux, high blood pressure, diabetes, and high cholesterol. 
  • Ultimately, alkaline water is the best option for all of them, because it decreases the workload of the gastric system and not because it will alkalize the body. This text is a property of The human body is already in alkaline condition at a pH of 7.35–7.45.
  • Some small changes in pH will make it difficult for your body to control other organ systems. And may even encourage bacteria to grow within your G.I. tract.


  • Although alkaline drinking water is supposed to be safe, it may produce adverse side effects too.
  • Some examples of those include reducing healthy stomach acidity, which helps kill bacteria and prevent any harmful contaminants from reaching your bloodstream.
  • Also, overall excess alkalinity in the body can cause gastrointestinal problems and irritation of the skin.

To keep it short, for the sake of your health, it makes sense to increase the pH factor of tap water. (Especially if it drops below the norm of 6.5 to 8.5, which you can always measure using a simple pH tester like this one.)

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Best alkaline water filters

Alkaline water bottle filter

This bottle filter is great, and you’ll undoubtedly see the difference in taste if you follow all the instructions. For instance, wash it as much as you can before you use it, and then rinse it a few times.

It’s an ultimate one-button alkaliner. In one press, the filter begins the production of hydrogen and alkaline water with a P.H. value of 7.5-9.0 in just 3 minutes.


The bottle looks good
You will find the difference of enriched water
Easy to use and clean
Makes treated water very quickly


Does not hold much water (only about 1.5 cups)
Charged only by using a proprietary USB cable, so you cannot lose it

Best alkaline water machine

The unit is made of high quality, solid materials. The battery charges quickly. And this water machine rapidly electrolyzes water into H2 and O2, separates and releases H2 and O2, converting the normal water into hydrogen-rich alkaline water. It’s very fast.

So you’ll get a glass of H2 water in just three minutes. This water machine capacity is built for 260ml/9Oz that precisely meets the one-time drinking needs of most people.


The water tastes delicious
The filter looks really cool
Works quickly
The pH of water is between 8.3 and 9.0 – almost perfect levels 
No need to replace the filter



Ionized water filter

This filter removes up to 99 percent of impurities found in water, including fluoride, nitrate, excess lime and chlorine, and much more. And even deals with toxins that competitors can’t handle.

It produces water with a pH of 8.5-9.5 without sodium. Which probably makes it the only filter capable of delivering sodium-free results. It adds magnesium, retains potassium, and uses natural activated vegetable carbon for the filtering process.


It does not only alkalize the water, but it also provides several antioxidants
Very powerful and cleans out the fluoride
The company holds a patent for its ionizing process


The filter has to be replaced approximately every 400 liters (in 3 months or use approx)

Antioxidant water filter

This compact system is designed to fit almost anywhere and will work just fine for a house, apartment, well water, RV, office, etc.

It comes with 4 gallons (3.2 gallons of water capacity) and includes all the filters you need for the first 6 months of use. This text is a property of The filters have been accredited by an independent laboratory to Natural Science Foundation level 58.

They have been able to remove nearly all recognized pollutants. From Lead, Arsenic, Fluoride, Asbestos, Heavy Metal, and Virus. It also contains more oxygen than tap water, plus nutrients and antioxidants to keep you going.

And best of all: it’s super easy to install. Little or no knowledge of the basics of plumbing needed.


Removes TONS of contaminants (including the tricky fluoride)
Mineralize the water
Easy to set up
Comes with filters
Water tastes delicious


Filters have to be changed
A bit pricey

Alkaline water system for the house

Excellent alkaline water filtering system for your home. It has super powerful 5 stages of filters, designed and assembled in the USA.

It boasts of being one of the most durable systems in the industry. And it’s been tested and certified by the Water Quality Association. It really does an excellent job of reducing total dissolved solids in your water (from 208 to 008 as been tested by users). 

Since the filter has all those stages, it requires more rare reinstallments compared to less advanced systems.

It takes care of fluoride, nitrates, radium, lead, bacteria, viruses, and much more. The company also offers lifetime support for this product. Great deal if you care about what you are drinking. 


Water tastes better than bottled ones
Really does an excellent filtering job
Lifetime support


Water flow is low
Tricky to install, you might need professional help

Shower water filter

Nice little filter that’s going to make showering great again. Not only does it clean water, but it also removes ammonia, heavy metals, rust, and other sediments. It also enriches it with vitamins C and E.

Huge numbers of buyers registered changes in their hair and skin health. The filter should last for an average of 6 months (depending on how polluted the water is in your area).

The company is doing business in a pretty impressive manner too. And from time to time, they are running promotions that offer free additional filters after your order.


Great water pressure 
Easy installation
The water feels softer on a skin
Comes with extras: spare o-rings and shower caps + sometimes free filters promo
Filter lasts for 6 months
Price/Value ratio


Showerhead only has one setting

It doesn’t clean 100% of contaminants
Only comes in Chrome

Best under sink water ionizer

It’s an amazing 2-stage ionizing water filter that will remove 99.99% of all the bad stuff. Anything from heavy metals, chlorine, and mercury to rust and carcinogens). While keeping all the essential minerals in the water (calcium, potassium, magnesium, etc.) 

 It’s simple to install with no plumbing required. And this under sink system includes a dedicated stainless steel faucet that can be installed in most sinks for cleaner water for cooking or drinking.  

The only thing you will have to do to maintain it is to replace the core part of the filter cartridge, which can be used for 2 years or 1,600 gallons of water. 


Easy Installation and great manual
Cleans water well and it tastes great too
Includes a longer stem for thicker countertops
Excellent quality of the filter and all the parts considering the price 


The faucet is a bit shaky 

Best countertop alkaline water filter

It’s a perfect little countertop filter. It’s easy to install. It quickly cleans your water from chlorine, radon, various industrial chemicals, and more. The unit is certified by the National Science Foundation, and each system is individually tested and sanitized.

The filtering cartridge will last you for around 750 gallons of water, and it’s very cost-efficient if you ask me. 


Easy installation
Cartridge lasts 
Each unit is tested and sanitized


None for the price
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Why do you need an alkaline water filter? Conclusion 

There are still not many studies completed in the field, but many alkaline water enthusiasts believe that there are many benefits of drinking alkaline water from the filters. Some of them include:

  1. Alkaline water has ultra-hydrating properties (VS regular water). 
  2. Filtered alkaline water is free of any extra toxins and pollutants that do no good to your body.
  3. The benefits of alkaline water also include boosting immunity and neutralizing body acidity caused by stress, poor diet, and environmental toxins.
  4. Some kinds of filtered and alkaline water boast with extra healthy minerals like magnesium, calcium, potassium, etc. All of those are vital to our health. 
  5. Alkaline water has many potent antioxidants that prevent the growth of free radicals that are known to be damaging for our cells and speed up the aging process.
  6. One of the most significant benefits of alkaline water is that it neutralizes the acidity of our body by reducing the unnecessary acidity in our gastrointestinal tract. 
  7. Filtering and mineralizing your water is cheaper than buying it from the supermarket.

Credits: Thanks for the photo to Canva.

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