Best Reverse Osmosis System Reviews in 2020

What is the best reverse osmosis system?

Many best water filter systems and best water softener systems for home are out there, and they each have their own features and uses.

Reverse osmosis not only removes chemicals that are usually missed by a lot of these other types of water systems.

Since this is the case, it has become more and more popular to have these systems installed in the home. The following are the best reverse osmosis system reviews.

Best Reverse Osmosis Systems - Top 6 Rated

There are a few reverse osmosis systems that stand out from the others.

These six systems are loved for their follow through in all of the previously mentioned features.

The following are some pros and cons of each one. A follow-up will figure out which one comes in first compared to the others.


Editor/Viewer's Choice!
Home Master TMAFC-ERP
APEC Top Tier Supreme
iSpring RCC7
Best for the Money!
APEC Top Tier
Express Water RO5DX
Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water Filter System
APEC Water Systems RO-90 Ultimate Series Top Tier Supreme Certified High Output 90 GPD Ultra Safe Reverse Osmosis Drinking Water Filter System, Chrome Faucet
iSpring RCC7 High Capacity Under Sink 5-Stage Reverse Osmosis Drinking Water Filtration System and Ultimate Water Softener
APEC Top Tier 5-Stage Ultra Safe Reverse Osmosis Drinking Water Filter System (ESSENCE ROES-50)
Express Water Reverse Osmosis Water Filtration System - NSF Certified 5 Stage RO Water Filter System with Faucet and Tank - Under Sink Water Filter - plus 4 Replacement Filters - 50 GPD
Editor/Viewer's Choice!
Home Master TMAFC-ERP
Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water Filter System
APEC Top Tier Supreme
APEC Water Systems RO-90 Ultimate Series Top Tier Supreme Certified High Output 90 GPD Ultra Safe Reverse Osmosis Drinking Water Filter System, Chrome Faucet
iSpring RCC7
iSpring RCC7 High Capacity Under Sink 5-Stage Reverse Osmosis Drinking Water Filtration System and Ultimate Water Softener
Best for the Money!
APEC Top Tier
APEC Top Tier 5-Stage Ultra Safe Reverse Osmosis Drinking Water Filter System (ESSENCE ROES-50)
Express Water RO5DX
Express Water Reverse Osmosis Water Filtration System - NSF Certified 5 Stage RO Water Filter System with Faucet and Tank - Under Sink Water Filter - plus 4 Replacement Filters - 50 GPD

Last update on 2020-03-19 at 17:22 / Affiliate links / Images from Amazon Product Advertising API / Amazon Disclosure

Best Reverse Osmosis System Reviews

1. Home Master TMAFC Artisan - Best Reverse Osmosis System - (Editor's Choice)

With a little customization, this can be the perfect reverse osmosis system. It is easy to install and will provide fresh, purified, drinking water for a long time.

Maintaining it is a no brainer. Changing the filter can be tricky, however, but it only takes a few minutes to figure out.

Its 50 gallon per day output is ideal for most homes that use water regularly. Installation is important for this system, as it can begin to leak if not tight or the right size.

The water waste of this system is not terrible to begin with, and can be lessened even further with an extra permeate pump to ease the pressure and provide more water that will not be wasted.

Checking your parts over before installation might be a good idea since they might not always be properly quality controlled.

However, the quality of this system is still top notch, and will likely be a great asset to your home. As long as you take care of it and make sure that it is properly installed, you will have an amazing reverse osmosis system.

Its great taste will cause you to never want to drink tap water again, and will keep you spoiled for years.

  • Easy to install at home by yourself and there are videos online to help with installation as well as written instructions
  • Great tasting pure water that will keep you hydrated and satisfied
  • Adding a permeate pump for the system gives in less water waste and a quicker recovery time
  • Simple to maintain and lasts a long period when this maintenance is performed
  • 50 gallon per day output
  • Quality assurance can be questionable; not all parts may be assembled correctly
  • Filter changing can be tricky
  • Water waste is about one gallon for every three processed
  • Water could come out strangely colored for the first few runs
  • Could start leaking if connections are not properly tightened
  • Might need to do some work on your sink before it can be installed properly

2. APEC Water High Flow 90 GPD - Best Reverse Osmosis Drinking Water Filter System

This reverse osmosis system is ideal for households that use slightly more water per day than average. If you just want more capacity, this is great for that, too.

Before buying, make sure that it is compatible with your sink, and if not, you might need to make some minor adjustments.

The amazing taste of the resulting water will blow you away. When you get used to it, other water will never taste the same.

Your body will appreciate the extra consciousness and TLC that water from this system will provide.

If you are looking for alkaline water, you might want to look somewhere else, however. The pH can end up being lower than stated on the box. This does not mean that it works any less well, it just might not be everything that you are looking for.

For installation, there are colorful and easy to follow instructions included, helping the process much easier. With these instructions, it is possible to maintain the system with ease. make sure that installation goes smoothly to keep the system from leaking. It might take some time, but it is definitely worth it when it comes to overall performance.

  • Tastes good and has a sleek design even though it will not often be seen
  • Easy to install, but you might want to know your way around the sink pipes a little bit
  • Easy to maintain by changing filter yearly and checking it every once in a while
  • Clear and understandable installation instructions to help you get it together as quickly as possible
  • 90 gallon output per day
  • Water waste could be lower but is not terrible
  • Can produce weird colored water at first, but will that go away after a few days or up to a few weeks
  • Not many adapter options for different kinds of pipes
  • pH may be a little lower than it is advertised
  • Might end up a little leaky if not tightened all the way
  • Quality control may be a little lacking for certain parts, causing leaks and installation issues to occur

3. iSpring RCC7 - 5 Stage Reverse Osmosis Water Filter with Designer Faucet

The assembly and installation of this iSpring system is easy but time consuming. There are a lot of parts but the instructions are clear enough to figure out easily. The resulting water is awesome and tastes even better than the best bottled water. You will want to get your own water bottle to carry this water everywhere with you.

However, the water waste is on the higher side. It might even be higher than others on this list. If installation is not performed properly, there is a risk of leaks. By putting out 75 gallons a day, you might want to reconsider if you are earth conscious. There may be ways to alleviate this if you know your way around or ask someone who does.

Maintenance is super easy since filters are affordable and customer service will be there for anything that you need. stress free filtered water can be hard to find, and you will not be disappointed. Lastly, make sure that you are being aware of the good minerals that your water no longer has, and supplement them with vitamins or the right foods.

  • Tons of parts but has easy installation and clear instructions
  • Water pressure is awesome and not too low
  • Great tasting water, better than bottled water
  • Affordable filters to make maintenance stress free
  • Customer service is helpful when needed for assistance
  • 75 gallons output per day
  • Removes even the good minerals from the water and cause problems when not taking supplements
  • Can be leaky if parts are loose or not installed properly
  • Performance falls short when it comes to the price
  • Water waste is very high, more so than others
  • Assembly can take a long time, but it is still fairly simple

4. APEC 5 Stage - Best Under-Sink Revere Osmosis System

This system can be installed without making any holes in your sink, making it ideal for places where you cannot make permanent installations. You can use zip ties or even a homemade box of its own, getting creative with it a little bit. The installation itself is easy, if not a little tricky for some.

With 50 a gallon output per day, it works quickly and provides delicious water for the day ahead. The water waste is not terrible, but it is not as advertised so keep that in mind. Also, remember that it might not last a long time, depending on how you maintain it and the specific system that you get. The quality control could be better with these systems.

Customer service might not be able to help you as much as you need them, so ensure that you are checking parts and everything before installation. This way you can take care of any problems early. Take a trip to the hardware store if you need things for your sink, but talk to customer service and try to have problems resolved before doing anything else.

  • ​Has an easy way to install without drilling holes in your sink. There is a way to avoid drilling these holes with just a little creativity
  • Well built and sturdy for daily use, perfect for large households
  • Will pay for itself in only a few months with the amount of water you will be saving
  • Tastes as good as bottled water, if not better
  • Installation is quick and easy enough with good instructions
  • 50 gallon output per day
  • Water waste is more than claimed on product description
  • Wear and tear can happen over just a few months
  • Customer service could be better at resolving issues with their products
  • Installation can be tricky for some people
  • Parts are not always the right sizes and connections may have issues. Can be easily resolved with a trip to the hardware store

5. iSpring RCC7AK - Under-Sink Reverse Osmosis Drinking Water Filtration System

The iSpring reverse osmosis system includes many options for your pipes for installation. It is also easy to install, especially with the extra parts. The water itself is refreshing and tastes great. The results that you will get are totally worth the cost of it. It will pay for itself several times, over a course of months of not buying bottled water.

Not only that, but the system itself runs smoothly and quietly. This is great for cases when silence is preferred. However, there are some things to keep in mind when it comes to this reverse osmosis system. You may want to replace the O ring since it can be flimsy and cause leaks. There is also a good amount of water waste that will result in the use of this system.

There are also some parts that might not be included that you will need to run to the hardware store for. This is normal when dealing with such a permanent installation. The water may also end up being less alkaline than expected, but it still does a good job of purification. Overall, this system is ideal when you want to have a little tinkering around.

  • Runs very quietly
  • Easy installation with the correctly fitted components for most pipe systems
  • Water tastes good, just like a water bottle, if not better
  • Great quality for how much that it costs
  • 75 gallon per day output
  • Flimsy O ring can cause some leaks, but is easily replaceable with a better one
  • Water waste is high, about four to one in some cases or even higher
  • Might need to get some extra supplies from hardware store for compatibility
  • Does not necessarily produce alkaline results as advertised
  • Water might leak when the system is turned off

6. 5-Stage Home Drinking Osmosis System PLUS Extra Full Set

Installation is super easy with the colored diagrams and clear instructions. The filter even come preassembles so you do not have to fiddle with it to make it work. Additionally, the system comes with extra filters, saving you a good amount of money when it comes to maintenance. Customer service is also always there for you when you need them.

The water you will get is so much better than bottled water, and you will have a hard time drinking any other kind again. The maintenance of this system is easy even without the extra filters. There is minimal leakage so that is not something you are going to have to worry about.

Make sure that you check the parts before beginning your installation. There may be issues with the parts that customer service will be happy to help you with. It runs slower that the others, so if you need a lot of water and quick, you might want to look at another one of these systems.

  • Preassembled filter so you do not have to all of the work during installation
  • Colored diagram of the tubes is included make maintenance and installation so much easier
  • Comes with extra filters so you do not have to buy any for a while
  • Great customer service if anything goes wrong
  • Water has a great taste, better than most bottled water
  • Easy to maintain with filters and minimal leakage
  • Assembly could be easier, but the colored diagram helps a lot
  • Quality control could pay a little more attention to the parts they send with the system
  • Runs a little slower than others so it might not be ideal for heavy usage

When it comes to installation, some of these are more complicated than the others. Overall, the one that comes out in front of the rest is the Home Master reverse osmosis system. It is easy to install and has video instructions to help it be even easier.

With water waste, it is hard to find one that will not put out a ridiculous amount. However, the Home Master comes in again with only three gallons for each one filtered. This still might not be ideal, but there may be options to improve this.

The capacity of each of these systems varies only slightly. The APEC Water High Flow system has the largest capacity out of all of them. Lastly, not all of these systems use all of the seven steps of reverse osmosis. The iSpring system uses the most stages. This is not a big deal, but may make or break your choice depending on what you need.

Overall, one of the best reverse osmosis system review lies within the Home Master water reverse osmosis system. The Home Master has the least amount of water waste with some adjustments, a decent capacity, and provides great tasting water for your every need.

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Value of Reverse Osmosis System

First, however, there is some valuable information to have while beginning your search for the right one for your household. The capacity, installation, taste of the water, and how many stages that the system has are all relevant to deciding which one is best for your needs. These four features of reverse osmosis systems are pretty important.


How much water that the best reverse osmosis system puts out per day is something that differs from each system. Gallons Per Day, or GPD, is the measurement used to determine the capacity of a system. Depending on how much water that you go through each day, you will want a system that is compatible.

However, one thing that you should keep in mind about capacity is how much water waste that results from your system. Sometimes it can take three gallons of unpurified water to make just one gallon of purified water. If the environment is something that is important to you, you might want to make sure that you are getting the system with the least amount of waste.


Ease of installation is also something that may be important to you. Whether it can be installed by an expert or if you can do it yourself can make or break a system for you. Sometimes you are also going to buy extra parts that are needed to install it.

Depending on your preferences, you can do it yourself with instructions that will be provided with the system. Some systems, however, do require that they be installed by someone who knows their way around a sink a little bit.

Water Waste

One big problem with these reverse osmosis systems is that they do produce a good amount of water that will not be used whatsoever. It will not even be able to be used in other ways since it immediately gets flushed out with the impurities.

If you care about the environment and are conscious of your water usage, you should definitely remember this when you are looking for a reverse osmosis system. There may be ways to use this water for other purposes, but not all systems will have the versatility to do so.


The taste of the resulting water is probably the most important aspect of a reverse osmosis system. You are going to be drinking it and using it for cooking, so naturally, you will want it to taste good. If the taste is something that is important to you, these systems will usually cause the water to have a much better taste, removing impurities that you may not even know about.

Water does not always taste like nothing. You might not even realize that your water does have a taste until you have your first glass of reverse osmosis purified water. The purified water that results from these systems is so delicious that you never want to drink any other kind of water again, not even the bottled kind. Any good system will provide better tasting water, regardless of the price and quality.


Up to seven stages of purification are available in some models. Not all of them have that many, and it is not super important to the quality of your water. Unless you have specific reasons for wanting or needing a seven-stage system, five steps are usually enough.

The following are the seven stages that a reverse osmosis system can go through. These steps are universal and only differ in how many are available with each system. It is ultimately up to you to decide how many stages that you want your system to have.

  • Stage 1: The water will first pass through a filter that removes sediment to get rid of dust, large particles, and silt.
  • Stage 2: A carbon filter removes chlorine, odors, bad tastes, and mineral oil from the already filtered water.
  • Stage 3: Another carbon filter filters any remaining chlorine or bad tastes and odors that may be left over.
  • Stage 4: This is where to reverse osmosis takes place. The water gets pushed through a fine filter that may remove around 95% of remaining impurities, including fluoride.
  • Stage 5: A polishing carbon filter will keep the water in the tank from forming a stale taste while it is in storage.Stage
  • Stage 6: Your water will be alkalized here, adjusting the pH to seven or above using things like magnesium and calcium.
  • Stage 7: This final step uses a filter with UV power to kill any bacteria in the water, including viruses.

Reverse osmosis systems do an amazing job at removing impurities, and will last a long time with proper maintenance. As long as you have in installed correctly and there is nothing fundamentally wrong with the system itself, you will be drinking the best water in no time.


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How to Choose a Best Reverse Osmosis System for Your Home

A reverse osmosis system can be super beneficial for those who need a cleaner water supply. You may be wondering how to choose a reverse osmosis system for your home. This guide will walk you through the steps you should take to pick out the best system for your household.

The most important thing that you need is an understanding of the system itself. Other than that, it is pretty much smooth sailing.

What You Need

Research tools of your choice

Whether it be the internet or an expert, having something or someone to educate you on reverse osmosis is critical. In order to fix things yourself and maintain the system, a basic knowledge and understanding can go a long way.

Make sure that you know all there is to know that you can process. It can be a complicated thing, but the basics are helpful to making a choice.

Ruler or measuring tape

To figure out the size of your area and how much you are going to need for your system, you need a measuring tool of some kind. No matter what it is, take note of the space and size of your current system.

Testing strips

You are going to want these to check your water, especially after the system is installed. Look for a kit that will test for different contaminants. There are ones for bacteria, pesticides, lead, nitrates and nitrites, pH, and hardness. You should know the levels of these in your water in order to make a decision based on what you need.

If a kit only has one type of strip, it will probably be for pH only. These are good, especially for testing your water after the system is installed. Making sure that the reverse osmosis system is actually doing something with your water can be a determining factor for continuing to use the system.


A thermometer is useful to test the temperature of your water when learning about the properties and qualities of your water. Depending on the temperature of the water, you will need to make a decision about what kind of membrane that you get with your system.

What to Do

Understand Reverse Osmosis

Knowing how the process works is important. Understanding the basic things about the process will be extremely beneficial to your ability to make a choice on a system. Knowing if this kind of system will even be an asset can make or break this kind of decision.

If there is the presence of bacteria in your water, you may want to invest in a reverse osmosis system. Also, if you are consistently disinfecting and/or sterilizing your water, this kind of system can be really helpful.

There are several advantages of a reverse osmosis system. It will remove odors and taste, improve texture and water appearance, and it does not require a lot of power. Also, the systems are easy to maintain, production costs are lower comparatively, and it is a convenient and economical process.

The unit itself has a few components. These elements work together to make sure that the water is as filtered as possible. A raw water source with enough water for the system is necessary. If there is not enough water, the filter pump can become damaged.

Pre-filter Treatment

First, a pressure pump provides external pressure, pushing the water through the first filter. The water also goes through a sediment filter and gets treated against sand, dirt, and more. This is the only pretreatment in preparation for the real deal. Reverse osmosis itself happens after the initial filtering.

Reverse Osmosis Unit

This component is the fundamental part of the system. Special membranes filter and purify the water from bacteria and chlorine. Carbon filters are required for the chlorine during the pre treatment problems since certain types of membranes are not tolerant of the element. This helps the system to produce up to one million gallons of water in one day.

Post Filter

These filters are used to remove odors and tastes that might be in the water. These are usually carbon filters that take the extra step after it leaves the unit.

Drainage and Flow Restrictor

There has to be somewhere for the impurities to go when they are removed from the water. Both the drain pipe and water supply pipes are attached to the unit itself, and a flow restrictor is needed to ensure that the filtered water does not go down the drain pipe.

Storage Tank

The purified water is kept in a large storage tank. These tanks are usually different sizes, so you can choose one that works for you. This water can then be used for whatever you need it for, whether it be drinking or cooking.


Good minerals that are removed along with the bad are sometimes necessary ones. If you have a system, you might want to be aware of your intake and supplement accordingly. However, this is not as big of a problem as some make it sound. It is not enough to reconsider your desire for a reverse osmosis system.

Water waste is a big thing when it comes to reverse osmosis systems. The amount of filtered water produced is always less than the water that is actually purified. If you are environmentally aware and conscious, you may want to make sure that you are getting the system with the least amount of waste. These can be hard to find, as the process is going to get rid of that water anyway.

If you want to, and you have the means, you can always expand your system to use the water elsewhere, lessening the amount of waste that is produced.

Measure Your Space

Take your measuring instrument and measure the space underneath your sink. Knowing how much space you have for a system can help when deciding which to get. Not all systems are the same size, and some are much larger than others. The size does not really have much effect on the usefulness of the system, but can be helpful if you are expanding.

You might need to get some extra parts to complete your installation. Keep this in mind during your next trip to the hardware store, especially if you are going for this reason alone.

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Doing a Reverse Osmosis System Maintenance

Know Your Water Properties

Temperature and Pressure

If your water is super cold, you will need to take that into consideration when taking not of your preferred parameters. If this is the case, you will need a booster pump in order for a system to benefit you. Also, you are going to need a booster pump if your water has a pressure of under 50psi. If the TDS (Total Dissolved Solids) is above 1,000, you will need one as well.


The quality of your water will determine what kind of membrane that you will need to get with your system. You will also need to find out how much purification your water already goes through, if it is even safe for consumption, and whether your water has a TDS (Total Dissolved Solids) of 500 or lower. More components like chlorination and acidity of the water will also help to determine what kind of system you will need.

Acidity should be between 6.9 and 7.5 in order to prevent corrosion of metals. A lot of systems will claim alkalinity, but few deliver. If this is an important factor for you, make sure that you are testing your water before and after.


If your water is already chlorinated, you should choose a membrane that is a cellulose triacetate membrane (CTA), which has a higher resistance to chlorine.

If there is no chlorine in your water, a TFC membrane is more capable of being able to handle bacterial attacks.

The membrane of your system should be changed every two years, of course depending on how often the system is used and your water quality.

Choose Number of Stages

Systems come in a range of stages that they put the water through. These stages range from around three to seven. None are less than three since the first three steps are essential to reverse osmosis, and cannot be skipped.

Depending on your water quality, you are going to need a certain number of stages to complete the process. The worse the water is the more stages you will want it to go through.

The seven stages are beneficial if you need the real deal. For your health, it can be super helpful, protecting you from dangerous chemicals that are hiding in your tap water.


If you are confident in your ability to install the system yourself, go for it. Most of the time it does not require a whole lot of complicated work. You may have to get extra parts if your new system is not completely compatible, but otherwise, it will be smooth sailing.o If you are not so confident, having an expert install the system will ensure that you everything is going to be correct. There are many installation options that you have, and you are free to choose whichever is best for you.

Pick a Unit

Now that you know what is needed to choose a reverse osmosis system, you should be well equipped to make an educated choice. Picking a unit does not have to be difficult. As long as you know your needs and what you are willing to do, you can narrow it down to a few systems that fit. If you need a lot of water, a large storage tank may be better, and vice versa.

Depending on your space, you will need to pick a unit that will be optimal. If needed, you may be able to get creative and make your own space, but that is if you are feeling ambitious. If you are planning on expansion, make sure that the system will be compatible and able to handle more than just water to your sink.

Choosing a unit that will be an asset to your home will be the most important to your decision. As long as you have all the information possible, you will be able to invest in the right reverse osmosis system that will last you a long time.

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I hope that now you have a little better of an understanding of reverse osmosis systems and whether or not you should decide to invest in one. I hope you enjoyed this tutorial and learned something about water systems that will be beneficial whether or not you ultimately choose to get one.

Overall, it is relatively simple to know what you need to make a decision on which reverse osmosis system to get, if any. It may be that you have decided not to get one because of your needs, but many other filtration systems could work better than this type.

I am hoping that you enjoyed this guide and that you will let me know what you think in the comments. Also, please share if you liked it! Help others to learn about these systems and see if they are right for them. You never know who you might be helping!

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