Top Reverse Osmosis Water filters- In depth reviews

Top 10 Reverse Osmosis (RO) water filters in 2024 (In-depth reviews)

Water is life. Specifically, drinking water is vital for the proper functioning of our bodies. That’s why you need to make sure you’re drinking pure and sufficient amounts of water.

That’s why water filters have become an essential household tool as they provide us pure and healthy water, cleansing all the pollutants and germs from the supplied water.

Among various types of water filters found in the market, reverse osmosis or RO water purifiers are the most popular ones. It’s been possible due to their efficiency and long life span.

There is no doubt that the RO water purifiers are everywhere these days. But, finding out the perfect one for you can be tough. There are so many different brands. 

Even the same brand will offer you products with a variety of specifications. All these make your choice a little bit harder. Worry not, we’re here to help. 

In this article, we’ll be showing you the best RO water purifiers in 2024. We’ve arranged the products based on their components, lifespan, and, most importantly, their costs.

So, if you’re looking for the best RO water purifier within your budget, you will find this article useful. Now, let’s start.

Some trivial queries about RO water purifiers

Let’s begin our discussion by answering some trivial questions about Reverse Osmosis water purifiers.

What is reverse osmosis?

Reverse Osmosis is the process in which water passes through a distinct type of membrane, and we get purified water at the output.

As the water passes through the membrane, it gets divided into two different categories- the permeate water and the RO reject water.

The permeate water is the purified one, while the other one contains the dissolved solids. Therefore, the TDS value drops when you purify water through reverse osmosis.

If you’d like to know more about how reverse osmosis works, you should visit our article here. In this one, we’ve explained all about reverse osmosis in detail.

What is a RO water purifier?

The word “RO” stands for reverse osmosis. So, a RO water purifier is a device that uses reverse osmosis to purify your drinking water.

As you probably know, we get our water from municipal water treatment plants. The plants collect water from natural sources, purify it, and dispatch that to our homes.

During the trip, it picks up substances that get dissolved into the water. As a result, the supply of water we get is not free from pollutants. 

But, as soon as the feedwater passes through the RO purifiers, it loses all the impurities, and you get clean and freshwater. 

If you would like to know more about how the water treatment plants work, you should visit our post here.

What are the components of a RO water filter?

Now, let’s talk about the components of a reverse osmosis water filter. You can easily guess the RO chamber is the principal element of a RO purifier.

In addition to the RO chamber, there will be a complete set of other filters like- sediment filters and activated carbon filters.

That’s not all. You will also find a RO storage tank. In some water filters, you will also find accessories like a UV disinfection unit or a remineralizer.

If you want to take a good look at the key components of a RO water filter, you should visit our recent article here.

Top 10 reverse osmosis water filters in 2024

Enough of the small talks. Now, let’s see the best reverse osmosis water filters in 2024.

To select the top filters, we researched the products thoroughly. And, we’ve sorted the best water filters based on their price, lifespan, efficiency, and other aspects as well.

So, let’s take a look at the top 10 reverse osmosis water purifiers in 2024.

Product's name

Features

Product Link

  • Higher Efficiency

  • Mineral Water

  • Lead-free faucet

  • Higher Efficiency

  • Low Waste Water

  • Tankless design

  • Mineral Water

  • Modern Design

  • Low Waste Water

  • Alkaline Water

  • Lead-free Design

  • Higher GPD

  • Alkaline Water

  • UV Disinfection

  • Higher GPD

  • Alkaline Water

  • Higher GPD

  • Lead-free Design

  • Budget-friendly

  • Lead-free Design

  • DIY Installation

  • Alkaline Water

  • Lead-free Design

  • Budget-friendly

  • Mineral Water

  • Lead-free Design

  • Budget-friendly

  • Budget-friendly

  • Lead-free Design

  • DIY Installation

Reviews of the best reverse osmosis water purifiers

Now, let’s get into the reviews of the top RO water purifiers from our recommended list. We’ll cover those- one after the other.

Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water filter

Highlighted features of the Home Master TMAFC-ERP RO water filter

The first one on our list is the Home Master TMAFC-ERP Under sink RO water purifier. We have selected the product based on several criteria. 

Now, let’s talk about that further.

Modular filter design will remove most of the pollutants

The first thing you will observe about the product is its modular design. With a setting of sediment filter, activated carbon filter, and artesian filter, it gets rid of 99% of the pollutants.

The sediment filter does the initial screening by removing the clay and sediment particles. Then, the Carbon filter absorbs any odor or organic chemicals in the water.

Lastly, the RO filter will cleanse the water by reducing the dissolved pollutants. 

In the case of most RO purifiers, you have to replace the cartridges periodically, but not the housings. But, with time, those deteriorate as well.

The Home Master TMAFC water filter will solve this. The modular design makes sure you replace the cartridge with housing during maintenance.

As a result, the filter remains healthy even after a long period.

Full contact remineralization scheme creates tasty water

Due to the principle of reverse osmosis, water loses all the dissolved molecules, including the mineral contents. 

As a result, after RO purification, water loses its taste, and also misses out on some vital electrolytes for our bodies. In the Home Master TMAFC water filter, you will find the solution.

The filter comes with a patented “Full Contact” technology that restores the mineral contents of the water. As a result, water gets back its health value as well.

Permeate pump provides higher efficiency

Another praiseworthy thing you will see about the product is its increased efficiency compared to other products in this category.

Most RO water filters tend to produce only 1 gallon of purified water against 10 gallons of input water. That means the remaining amount goes down the drain.

As a result, the efficiency is very low. To solve this problem, the Home Master TMAFC RO purifier comes with a permeate pump of its own.

This permeate pump significantly improves the system’s performance. It also reduces the amount of water going to the drain. 

If you’d like to know how a permeate pump works, check out our recent article here.

Price is reasonable with DIY installation

In addition to all these features, the product also offers an easy DIY installation. So, this makes your life even more comfortable.

So, you see, the product comes with versatile specs- the replacement is easy, water is tasty, the system is efficient, the list goes on and on and on.

After all this, the product comes at a very reasonable price. So, why are you waiting? Click here to take a good look at Amazon.

Pros and Cons of the Home Master TMAFC-ERP RO water filter

Pros

Cons

Waterdrop G3 RO reverse osmosis drinking water filtration system

Highlighted features of the Waterdrop G3 RO reverse osmosis water filter

The next product that comes into our list is a high-end one. Consequently, it excels in many categories than any traditional RO water purifier.

The name of the product is the Waterdrop G3 RO drinking water filter. So, let’s take a look.

With multiple stages, the filter wipes out most of the pollutants

Firstly, let’s talk about the number of stages inside the filter. You will find a sediment filter, a premium carbon block filter, a second sediment filter followed by three layers of RO membrane.

The first sediment filter removes the dust, rust, and other larger pollutants. Then, the carbon block filter gets rid of the chlorine, chloramine, or odor.

Next, the water enters into the RO membrane, which removes dissolved contaminants or heavy metal. Finally, there is a post activated carbon filter to enhance the taste.

In this fashion, the Waterdrop WD G3 water filter provides you pure and clean drinking water.

Elegant design with electronics increases the efficiency of the filter

The other notable thing you will see about the product is its innovative design, which doesn’t conform to the traditional RO filters.

With elegant design, the filter effortlessly catches your eye and adds to the aesthetic sense of the surroundings.

That’s not all. The product also includes a built-in pump, run by intelligent electronic circuits. The pump increases the efficiency of the system significantly.

With the presence of the pump, it ensures that the drain to the product water ratio remains 1:1. In general, the ratio is 3:1 or worse.

The tankless design saves you more space

Higher efficiency ensures one other thing. Besides being eco-friendly, the product also serves you water fast.

To perform the same function, other RO purifiers would store purified water into a tank. The tank would eat up space in your kitchen and make the filter bulkier.

On the other hand, the smart design of the Waterdrop G3 water filter makes it tankless. The electronic makes sure you get water at an adequate rate.

As a result, the filter can free up more space in your kitchen.

All the equipment is lead-free and improves water quality

As we’ve already mentioned, the product will fill up your glass within fast. In addition to the elegant design, the components are also lead-free.

That’s why you will get high-quality water from the Waterdrop G3 water purifier. Moreover, the product is fairly easy to install.

So, you see, the high GPD water filter packs a variety of features in one. But, due to its distinct and efficient design, the water also comes at a higher price.

You can check the product out here on Amazon.

Pros and cons of the Waterdrop G3 RO reverse osmosis water filtration system

Pros

Cons

Brondell circle reverse osmosis under sink water filter

Highlighted features about Brondell circle reverse osmosis water filter

If you’re looking for a compact RO water purifier, the Brondell circle reverse osmosis under sink water filter can be another good option.

So, let’s find out more about the product.

With 4 stages the product offers you clean and freshwater

The Brondell Circle reverse osmosis water filter comes with four internal stages to purify your drinking water.

The first sediment filter clears all the dust, rust, or clay particles in the water. Then, the pre-carbon filter removes pollutants like Chlorine, Benzene, or other organic compounds.

After initial screening, water moves on to the RO chamber. It works as the core of the device and gets rid of the ionized pollutants from the water.

After that, the water gets stored in the reservoir. When you open the faucet, water comes out through the post-carbon filter with a smooth taste.

Patented circle technology improves efficiency

With innovative technology, the Brondell water filter will surely reduce the wastewater from your system and improve efficiency.

The patented circle technology, assisted by smart valves, makes sure that the water only goes forward inside the system.

As a result, the filter would only waste 2 gallons of water to produce 1 gallon of purified water. In general, the ratio of reject water to product water is 3:1 or worse.

The eye-catching design allows you more free space

Another aspect of the product is its compact design. It provides a spectacular housing that covers all the components inside.

The design is not only eye-catching but also allows you to have more space. In general, most RO purifiers consume too much space from its surroundings.

The product also has a well-designed reservoir inside to store water during later usage. 

So, if you’re looking for a water purifier with elegant design, the Brondell Circle RO filter can be a good choice.

Food-grade components make sure you get high-quality water

Coming from Brondell, you can be sure their flagship RO purifier complies with all the health standards.

All the components are lead-free and eco-friendly. Installation and maintenance are also easier.

There are LED indicators that would give you updates about when it is time to replace the filter cartridges.

All things considered, the Brondell Circle RO purifier also comes at a reasonable price. Still, not satisfied? Take a good look at the product on Amazon.

Pros and cons of Brondell circle reverse osmosis water purifier

Pros

Cons

APEC Top Tier Essence Series ROES-75 Under sink RO water filter

Highlighted features of the APEC Top Tier ROES-75 RO water purifier

Number four in our list is a brand product from APEC water systems. The name of the product is APEC water systems Top Tier Essence series ROES-75 reverse osmosis water filter.

The name can be a handful. Now, let’s get a little more insight into the product.

Six stages of filtration clean your water effectively

The product comes with six consecutive stages of water filtration. As usual, the first stage consists of a sediment filter.

This one removes all the dust, rust, pieces of debris that come floating with the water. Then, the water passes through two successive stages of Carbon block filters.

In these stages, water will lose most of the organic chemicals, odor, chlorine, and other pollutants.

After that, water will enter into the reverse osmosis membrane. Due to the strong RO filter, you can get rid of the dissolved impurities like Arsenic, Radium, and others.

The 5th stage is the post activated carbon filter, which will remove the secondary pollutants as the water comes out of the tank.

The alkaline filter keeps the pH at a healthy level

As we’ve already mentioned, most conventional RO purifiers get rid of the dissolved electrolytes from the water, which includes mineral contents.

Most of these minerals play a role in keeping the pH of your drinking water at a comfortable level. To solve this dilemma, APEC ROES-75 comes with an alkaline filter of its own.

After the post-carbon filter, water would enter into the alkaline filter, where it would take in a sufficient amount of minerals. Also, the pH would return to its appropriate value.

Easy installation and maintenance make it more popular

Now, let’s talk about other offerings of the product. Being a branded product, you don’t need to worry about the quality of the filter.

The lead-free faucet pairs with food grade tubing to provide high-quality, fresh, and pure water.

That’s not all. The product also comes with a DIY (do it yourself) manual of its own. So, if you like to work with tools, you can easily install it by yourself.

Furthermore, the product is available at a very comfortable pricing. So, why are you still waiting? Click here and check out other Amazon consumers’ thoughts about the product.

Pros and cons of the APEC Top Tier ROES-75 Reverse Osmosis water filter

Pros

Cons

Express water UV 11 stage Reverse Osmosis water filter

Highlighted features of the Express Water UV 11 stage RO water filter

The next product in our list is the Express water UV 11 stage reverse osmosis water purifier.

So, let’s see what makes the product stand out among the crowd.

The product packs 11 different stages to purify your drinking water

The first thing that comes to notice about the product is that it offers a whopping eleven number of stages to purify your drinking water.

As usual, the sediment filter removes the insoluble contaminants out. Then, two activated carbon filters wipe out the factors contributing to odd taste.

After that, water enters into the reverse osmosis chamber. There it breaks into product water, and the remaining one goes to the drain. The purified water gets stored in the tank.

The alkaline filter adds minerals to the water

After the RO membrane, there are five successive stages of alkaline filters. These filters add minerals to the purified water.

As you know, after passing through the reverse osmosis membrane, water loses most of its mineral contents. 

The Express water 11 stage RO-UV filter has a robust set of alkaline filters that will revamp the water by restoring the minerals. Also, the pH level will be back to normal.

The UV filter removes the germs and microorganisms

That’s not all. The filter also has a UV filtration unit. If you’re familiar with Ultraviolet rays, you already know that we use those to sanitize water.

The tap water we get may contain a limited amount of microorganisms like bacteria, viruses, or cysts. The UV filter works to keep your water safe.

As the water enters the UV unit, the UV rays will disinfect the water by making the organisms harmless. Then, the water goes through the post Carbon filter, which enhances the taste.

Installation and maintenance are simpler

With multiple stages of filtration available, the product also offers simple DIY installation. 

All the components comply with the food grade. That’s why you will surely get pure, clean, and tasty water for a longer period.

With all these features, the product comes at a very reasonable cost. So, feeling curious? Click here and find out more about the product here on Amazon.

Pros and cons of the Express water UV 11 stage RO water filter

Pros

Cons

iSpring RCC7AK 6 stage Under sink reverse osmosis water filter

Highlighted features of the iSpring RCC7AK 6 stage RO water filter

Number 6 on our list is another branded product, the iSpring RCC7AK 6 stage water filter. The product comes as a flagship product from the company, iSpring.

Now, let’s find out more about the purifier.

With six stages the filter removes the soluble and insoluble pollutants

The product comes with six stages of filtration to serve you pure and clean drinking water.

After the water passes through the sediment filter, even the tiniest of clay or debris will get filtered.

Then, there are two back to back activated carbon block filters. They remove all the organic compounds, odor, benzene, nitrate, Chlorine, and other pollutants.

Finally, there is the reverse osmosis membrane that works as the principal filtering point. As the water passes through it, it loses all the dissolved impurities and becomes pure and fresh.

The alkaline filter restores the mineral contents into the water

As we mentioned earlier, one drawback of Reverse osmosis filtration system is that it wipes out all the mineral contents from the water.

As a result, the pH value worsens. To aid you in this purpose, the iSpring RCC7AK RO purifier comes with an alkaline filter of its own.

When you open the faucet, the purified water will travel from the tank absorbing minerals from the alkaline filter.

As a result, the pH value will improve, and you will get tasty and freshwater in no time.

DIY installation and customer support will make your life easier

Easy installation and maintenance is another aspect of the filter that makes it the best seller among all the RO purifiers out there.

Pair that with exceptional customer support, and you’re good to go. All these traits have made sure the product stays on top of the list.

The product will last for a long period if you take good care. With all these features, the product comes at an exceptionally reasonable price.

So, why are you waiting? Check out the product here at Amazon. You can also have a detailed review of the product in our article here.

Pros and cons of the iSpring RCC7AK 6 Stage RO water filter

Pros

Cons

APEC Top Tier ROES-50 5 stage Reverse osmosis water purifier

Highlighted features of the APEC Top Tier ROES-50 RO water filter

Now, if you’re looking for a budget-friendly reverse osmosis water filter from a top brand, our next one can be a very good choice. It is the APEC water ROES-50 RO water filter.

So, let’s find out more.

Sediment, Carbon block and RO membrane purify your water to the fullest

From the name, you can easily guess that the APEC ROES-50 water purifier has five stages inside.

The sediment filter effectively gets rid of the dirt, dust, clay, or any other insoluble pollutants from the water. Then, the water goes through two successive Carbon blocks.

The granular activated carbon blocks gradually wipe out the chemicals, causing the bad taste. Then, the RO membrane removes the microscopic pollutants from the water.

Finally, the post Carbon filter adds a refreshing taste into the water.

Food grade tubing and lead-free faucet ensure high-quality water

Being a product from one of the best water products brands, APEC, the product satisfies all the health standards out there.

The faucet is lead-free. The housings and tubings are eco-friendly as well. 

Due to the efficient design, the product will last for a long time, with only minimal maintenance.

So, you can see, the product will give you high-quality water, no doubt.

Easy DIY installation and maintenance is possible

Like all the other products in our list, the APEC ROES-50 water filter also provides you chances for DIY installation.

With the easy to follow manual, you can install the product by yourself. The filter cartridges also last longer compared to other products in this category.

Despite all these features, the product is still very economical. You can check out the current price here on Amazon.

Also, if you want to find out more about the product, you should visit our article here.

Pros

Cons

Express Water 10 Stage Under Sink Reverse Osmosis water filter

Highlighted Features of the Express water 10 Stage RO water purifier

Another popular budget-friendly option can be the Express water 10-stage Under sink reverse osmosis water filter.

So, let’s see why the product is worth your money.

The versatile design ensures you get pure and clean water

One thing that will surely come to your attention is the number of stages the product offers. It has a staggering ten number of stages.

As usual, the sediment filter does the initial screening. Then, the back to back carbon filters remove visible and organic pollutants.

After that, water enters into the RO chamber, where it loses all other dissolved molecules and becomes pure. 

In this fashion, you get clean and pure water.

The alkaline filtration keeps the pH at a sufficient level

You probably know by now that the Reverse osmosis purifiers wipe out all the dissolved molecules from the water.

As a result, the water lacks mineral contents, which makes the water taste bitter. To help you with this, the Express Water 10 stage RO purifier, has a robust set of alkaline filters.

Now, as soon as you open the faucet, the water will collect the minerals and reach you very promptly.

As a result, the water taste improves significantly.

An economical price makes the product more popular

The product is highly customizable. You can add one or two more stages in series with the product.

Also, the DIY installation manual makes it easier for you to install the filter by yourself. 

The maintenance is hassle-free. There is an indicator to show you when it is time to replace the cartridges.

Having all these aspects, surprisingly, the product also comes at a very moderate cost. You should check out the current price here at Amazon.

Pros and cons of the Express Water 10 Stage RO water purifier

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Cons

Aquasana OptimH2O Under sink Reverse Osmosis water filter

Highlighted features of the Aquasana OptimH2O RO water filter

When it comes to budget, another RO filter can also attract your attention. This one is the Aquasana OptimH2O Under sink Reverse Osmosis water filter.

Come and let’s find out why the product can be an excellent choice for you.

With three stages the filter removes the pollutants

Unlike all the other conventional RO water purifiers, the Aquasana OptimH2O RO filter doesn’t have a sediment filter.

Instead, the activated carbon filter removes the clay particles and organic molecules. Then, the reverse osmosis membrane cleanses the water of the dissolved pollutants.

After that, water goes through the patented Claryum filter, which gets rid of Chlorine and Chloramine molecules.

As a result, you get pure, clean, and freshwater from the faucet.

The remineralizer unit restores the electrolytes

Now, as the RO filter gets rid of the dissolved solids, water will lack mineral contents. As a result, water will taste bitter.

To solve this, the Aquasana OptimH2O water filter comes with a remineralizer unit of its own. 

As water travels from the tank to the faucet, it picks up minerals from the unit and gets back its taste.

So, this is how the product makes sure you get safe and healthy drinking water.

An easy to follow DIY installation manual keeps you hasslefree

Compared with most of the conventional RO purifiers, the Aquasana OptimH2O RO filter is really easy to install.

The DIY installation manual will help you in every aspect. That’s not all. You can also customize the design of your faucet.

Moreover, all of its components are lead-free and comply with the health standard as well.

You can find out more about the product here in our recent review article. Also, if you would like to check out the pricing, click here to check on Amazon.

Pros and cons of the Aquasana OptimH2O RO water filter

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Cons

Whirlpool WHER25 Under sink Reverse osmosis water filter

Highlighted Features of the Whirlpool WHER25 RO water filter

The final product on our list is a reverse osmosis water purifier from one of the top and trustworthy brands, Whirlpool. It is the Whirlpool WHER25 Under sink Reverse Osmosis water filter.

Let’s see what the product offers.

Compact design with three stages filter out the contaminants

The product houses three stages of filtration inside. The sediment filter works to trap the dust, rust, clay, and sediment particles.

Then, water enters the reverse osmosis membrane. The membrane gets rid of the toxic chemicals dissolved in the water.

After that, the purified water goes through the activated carbon block filter. It restores the taste, and you get clean, fresh, and pure water.

Installation and maintenance are fairly easy

Unlike other RO water purifiers, the installation of this one is fairly simple. You can check out the installation procedure in our article here.

Maintenance is also hassle-free. There is a LED indicator that will update you when the time for replacement comes. 

Just stop the inlet valve, take out the old filter cartridge, insert the new one, and you’re good to go.

So, you see, with easy to follow installation and maintenance, the filter has gained so much popularity in a short time.

The product comes at a very reasonable price

Being a flagship product from one of the most credible brands, Whirlpool, you can assume the product is probably a pricey one.

But, to your utter surprise, the product comes at a comfortable price. You should check out the current price here on Amazon.

Also, if you would like to get a good and detailed look at the product, you should check out our recent article on it. Click here to check it out.

Pros and cons of the Whirlpool WHER-25 RO water filter

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Cons

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