Whether you’ve been using a reverse osmosis water filter for years or you’re trying to decide if you should start utilizing one, you’ve come to the right place. Reverse osmosis is an effective way to remove impurities from your water, so you can trust the water you’re drinking without having to worry about any harmful chemicals.
If you live in an area where the water isn’t as clean as it should be and you find that you suffer from symptoms associated to unclean water, then you definitely want to check out our reverse osmosis system reviews.These systems are designed to get rid of any lead that may be in your water supply, filter out other harmful contaminants, and ensure that every glass you pour is pure and delicious.
Since we know you’re most likely here because you want to ensure the water you consume is safe to drink on a daily basis, we’ve taken the time to research and review the best reverse osmosis system selections currently available. The products we’ve chosen are among the most efficient and effective options you’ll find out there.
In order to provide you with the most up to date information, we’ve taken the time to research each of the products we’ve decided to feature below. We’ve also curated a buying guide that is specifically tailored to help you find the best ROsystem for your needs. Keep reading to learn almost everything you need to know about these filtration systems!
Reverse Osmosis System Reviews
- iSpring RCC7AK
- Filtration Stages: 6-Stage
- Color: White
- Dimension: 14.5 x 5.2 x 18.5 inches
- Weight: 20 pounds
- Warranty: 1-year money-back guarantee
- Home Master TMAFC-ERP
- Filtration Stages: 7-stages
- Color: White
- Dimension: 12 x 16 x 20 inches
- Weight: 14.5 pounds
- Warranty: 5 year limited warranty
- Home Master TMHP
- Filtration Stages: 9-stages
- Color: White
- Dimension: 5 x 15 x 15 inches
- Weight: 18.75 pounds
- Warranty: 5 year limited warranty
- iSpring RCC7
- Filtration Stages: 5-stages
- Color: White
- Dimension: 14.5 x 5.2 x 17.5 inches
- Weight: 25 pounds
- Warranty: 1-year money-back guarantee
- APEC Water Systems ESSENCE ROES-PH75
- Filtration Stages: 6-stages
- Color: White
- Dimension: 16 x 5.2 x 17.5 inches
- Weight: 25 pounds
- Warranty: Manufacturers
- Brondell RO
- Filtration Stages: 4-stages
- Color: Black
- Dimension: 13.8 x 9.2 x 16.5 inches
- Weight: 14.6 pounds
- Warranty: One year limited warranty.
iSpring RCC7AK 6-Stage
This iSpring selection is an undersink reverse osmosis water filtration system that will deliver great tasting water with natural pH levels. It has the capacity to remove 98% of the lead in your water supply and filter out 99% of other contaminants such as arsenic, asbestos, bacteria, calcium, chlorine, fluoride, giardia, hormones, sodium, and viruses—just to name a few.
The best part about this reverse osmosis water filtration system is that it offers six filtration stages instead of the standard five. The sixth stage features a remineralization process that’ll return the healthy minerals that are stripped away from the water during the filtration process. This additional remineralization process allows the system to deliver crisp
and delicious water that stands out from other systems.
Given the price of this system, it is worth much more then what it will cost you. It is easy to install and comes with everything you need to get it set up. It is low maintenance and designed to fit the standard sink size, so it will work for most spaces as well. It is important to note, however, that this system contains PVS—but that does not take away from the quality of water it delivers.
Home Master TMAFC-ERP
Here we have the Home Master undersink reverse osmosis filtration system, another excellent product to consider. This reverse osmosis water filter system utilizes 7 different filtration stages, which allows it to effectively rid your water supply of 98% of the contaminants and chemicals it may be riddled with. The additional stages also allow the system to reintroduce safe and necessary minerals, such as Calcium and Magnesium, to ensure you get great tasting water with added health benefits.
If you want to invest in a water saving options, this is a great system to consider because it will reduce up to 80% of your overall water waste thanks to the pump it utilizes. It comes with everything you need to set it up and the filters are really easy to switch out when the time comes—each filter is able to handle 2,000 gallons of water.
This system is also available at a great price, especially since it meets the NSF standards of safety and quality, so you are definitely getting a product you can trust. It is also accompanied by a 5-year warranty that will cover specified incidentals. Overall, this system is a great investment that is worth every penny. If you want a system you can rely on for years to come, this one will definitely do!
Home Master TMHP HydroPerfection
When it comes to clean water, this Home Master reverse osmosis water filtration system deserves to be featured with the best. This is another undersink selection that features a filtration process that will remove up to 98% of the chemicals, contaminants, heavy metals, and iron from your water supply.
The best part, however, is that its patented technology allows for the remineralization of your water, so every glass provides you with essential calcium and magnesium.
Furthermore, the unique UV light sterilization feature will also cleanse your water supply of
99.9% of any bacteria, germs, or viruses that may be present.
For those of you with well water, you will be happy to hear this reverse osmosis machine is compatible with both well and city water systems. And, since it has filters that can handle up to 2,000 gallons of water, you will only have to switch the filter out a maximum of once of year. If you want a system that requires minimal maintenance and will continuously deliver water of the highest quality, you will probably love this reverse osmosis system.
All in all, this RO system is a little pricey, but is worth the initial investment you will make. Its purchase comes with a 5-year limited warranty and its construction and design meet NSF quality and safety standards. It has a faster flow rate compared to the standard reverse osmosis filtration system, so you will get delicious and pure water at a much faster rate.
iSpring makes excellent ROwater systems—which is why we have another one featured here on our list of reverse osmosis water filter reviews. Like the previous iSpring selection, this is another undersink system; the difference is that this one features 5 stages of filtration instead of 6. The sixth stage does not mean that it is better but rather that it is designed for those of you who have access to water that needs additional filtration.
This system has the capacity to reduce up to 1,000 different contaminants from your water by up to 99%. More specifically, it is capable of filtering 98% of the lead in your water supply and 99% of the arsenic, asbestos, bacteria, calcium, chlorine, fluoride, giardia, hormones, and viruses (just to name a few). Additionally, the water softening feature will ensure you receive great tasting water that will go down smoothly.
The WQA has given this system their highest ranking because they stand behind the safety and quality of the water it delivers. The installation process is simple, and users love how easy it is to get a hold of the brand’s customer service department if any issues arise. All in all, this is a cost-effective filtration system that delivers high-quality water that is up to par with other more expensive selections.
APEC Top Tier
This ROwater filtration system review features the Apec Top Tier reverse osmosis filtration system. Constructed in the United States, this product utilizes a 6-stage filtration process that delivers quality water that is safe to consume and tastes great. True to the quality of the brand, this system is designed to be exceptionally durable and built to last. It is constructed of high quality materials and you can absolutely rely on it for the long haul.
The first 5 stages of the system effectively filter your water supply of up to 99% of the bacteria, chemicals, cysts, viruses, and other contaminants it may be riddled with. The sixth and final stage features a remineralization process that restores you water with essential minerals and neutralizes the water’s pH levels for optimal alkalinity. The minerals added to the water supply toincrease your water’s alkalinity come from high-quality calcium made in the United States.
Not only is this system available an excellent price, but the company also offers a 2-year warranty if you register it. Your purchase comes with everything you need to get it set up and it also comes with a lead-free faucet and tubing that has been FDA-certified for safety and quality. Overall, this system is a great addition to any home and will deliver high-quality water that is safe to drink and tastes great.
Brondell RO Circle
If you are looking for a compact reverse osmosis water filter, then this may be the perfect fit for you. Priced a little higher than average, this system will help you save space and money thanks to its water saving capabilities. Its undersink design is easy to install and the filters are simple to replace when the time comes—you’ll know when it’s times thanks to the LED filtration indicator light.
The Brondell RO Circle system features a 4-stage filtration process that has earned the WQA gold seal certification because of the quality of water it delivers. The system also meets NSF safety standards, so you can be sure you are drinking water you can trust. In fact, this system effectively and efficiently rids (or extensively reduces) your water supply of atrazine, barium, chlorine, fluoride, heavy metals, herbicides, industrial chemicals, lead, microorganisms, pesticides, TDS, unpleasant tastes and/or odors, VOCs, and much more.
All things considered, this system is worth the investment because it is highly efficient, reduces water waste, and has a faster refill rate compared to other systems. It is easy to install and is compact in size—so you will still have plenty of space underneath your sink once you get it completely set up. If you have the budget to invest in this system, you will find the benefits and features it has to offer makes it worth the investment.
The APEC RO-90 is manufactured in the United States and is definitely built to last. Its filtration system features a 5-stage process that filtrates a maximum of 99% of the arsenic, bacteria chlorine, fluoride, lead, heavy metals, viruses, and a plethora of other contaminants in your water supply. The system’s faucet is also free of lead and all of the system’s tubing is FDA approved.
This reverse osmosis machine utilizes features that can handle more than other standard filtration systems—which makes them less prone to clogs and also reduces the frequency of filter changes. Another important feature to mention is that this reverse osmosis water filtration system is WQA Gold Seal-certified for water quality and safety, so you know you’re drinking water you can trust.
Given the price of this system and the extensive features it has to offer, this is definitely one of the best ROsystem selections currently available. The chrome faucet will compliment any space and you can count on this system to be quieter and less likely to leak in comparison to many other selections out there. At the end of the day, this is an incredibly effective and efficient system that comes with everything you need and is also easy to maintain, so it will require minimal effort on your part.
iSpring RCC7AK-UV Deluxe
This ROwater filtration review focuses on another iSpring filtration system. The Deluxe model, in particular, features a filtration process of 7 stages that ensures your water supply remains free of harmful contaminants and continues to taste great until it is time to switch out the filter.
In terms of filtration and contaminant removal, this system is able to rid your water of more than 1,000 different contaminants by up to 99%. More specifically, it is capable of filtering out 98% of the lead found in your water as well as 99% of the arsenic, asbestos, bacteria, calcium, chlorine, fluoride, giardia, hormones, sodium, viruses, and much more.
The seventh stage, however, will reintroduce essential minerals to your water supply, so your water isn’t completely stripped of everything. The system also features a UV sterilization process, which makes it an excellent option for those of you with well water. The water softener will further ensure you are drinking crisp and delicious water that will go down smoothly.
For the price, this reverse osmosis filtration system definitely delivers. Not only is it easy to install, but it’s also easy to maintain. Your initial purchase will come with everything you need, and the filters can be easily found in most hardware stores. The faucet is completely lead free and—best of all—your purchase comes with a one-year money back guarantee and lifetime access to the company’s technical support team. Clearly, the company stands behind the quality of this product, which is why it deserves close consideration from anyone looking for a quality reverse osmosis water filtration system.
APEC Portable Countertop
If you’re on the lookout for a compact reverse osmosis water filter system, this is a great countertop option. It’s designed to be compatible with most kitchen faucets, although it’s important to note that it won’t work with pull-out, sprayer, or uniquely sized faucets. This system is also easy to set up—all you need to do is plug it in—so you don’t have to worry about any installation.
The filtration process offered by this system features 4 different stages and it is WQA-certified for quality and safety. Since it is so compact in size, this is a perfect option for those of you with smaller spaces to work with. You can also choose to purchase the system with or without the case—although it is typically purchased with the case since it gives the system a sleek and appealing look.
Although the system is on the pricey side, it is worth the investment if you need a lightweight, easily portable, and compact reverse osmosis water filter system. This is an exceptional option for anyone who wants to use their system in their home as well as in their RV when they are away on vacation. Your purchase also comes with a free access to the company’s support team forever.
Whirlpool WHER 24
Here we have another countertop RO water system that delivers water that’s safe to drink and tastes great. The system effectively filters your water with a three-stage process that effectively reduces or gets rid of arsenic, barium, cadmium, chromium, chemicals, cysts, chlorine, dissolved solids, fluoride, lead, magnesium, nitrate, nitrite, radium, selenium, sediment, sodium, sulfide, odors, and more.
Whirlpool is a well-known brand that’s known for its high-quality and durable products—and this system doesn’t disappoint. This system features an indicator light that will let you know when it’s time to switch out your filter, which is also really easy to replace. The installation process is also simple; all you need to do is connect your filter to the water line located beneath your sink. Many users also love the fact that it is simple to maintain. Yes, you will need to regularly replace the filter, but the replacements times are conveniently spaced over larger periods of time.
Overall, if you’re on the hunt for a cost effective RO filtration system, this is an excellent selection to consider. It is lightweight, portable, and capable of effectively delivering crisp and delicious water that is safe to drink. It is durable and built to last as well, so you can count on it for years to come.
This NSF-certified countertop filtration system is effective and efficient at removing arsenic, carcinogens, chlorine, chromium, copper, fluoride, lead, radium—just to name a select few. Its efficiency and effectiveness is thanks to its 4-stage filtration process that is also certified for quality and safety. With this system you can feel confident the water is of the highest caliber due to the extensive testing that was required for its NSF certification.
As far as setting this system up, you will be happy to hear there is no installation process—just plug it in and start using it. Its compact design is a perfect fit for smaller spaces and its sleek look will ensure it looks great in any space. The filters are also really simple to switch out when the time comes, and the system will filter an entire gallon of water for you in less 15 minutes or less.
All in all, this is an expensive countertop filtration system, but it does not disappoint. It is constructed of BPA-free materials and is a perfect fit for any kitchen, especially for those that offer less space. If you decide to purchase this system, you will also receive a 100% satisfaction guarantee and a system that is certified to provide you with safe and delicious water.
The FS-TFC RO system is installed under your sink and features a tankless design. It is one of the more cost-effective selections on our list and is a great option for larger homes, businesses, restaurants, and even aquariums. Thanks to its water saving capabilities, this is also one the most efficient systems currently available.
The 5-stage filtration system utilized by this selection has the ability to rid your water supply of up to 99% of the arsenic, bacteria, chlorine, lead, fluoride, heavy metals, viruses (to name a few) that your water may be riddled with. At the end of the day, this system will filter out over 1,000 different contaminants that could be in your water and delivers water that tastes crisp and delicious. And the best part is that it is able to provide larger households and even businesses with consistent access to the high quality water.
For the cost, you will find you will definitely get a bang for your buck with this one. Its tankless design makes this system compact, easy to store, and allows it to have a simple installation process. This is an excellent choice for those of you with larger spaces and its high-quality construction ensures this is a durable product you can rely on for the long haul.
Reverse Osmosis System Comparison Chart
|iSpring RCC7AK||6-Stages||14.5 x 5.2 x 18.5 in||White||20 pounds|
|Home Master TMAFC-ERP||7-stages||12 x 16 x 20 in||White||14.5 pounds|
|Home Master TMHP||9-stages||5 x 15 x 15 in||White||18.75 pounds|
|iSpring RCC7||5-stages||14.5 x 5.2 x 17.5 in||White||25 pounds|
|APEC ESSENCE ROES-PH75||6-stages||16 x 5.2 x 17.5 in||White||25 pounds|
|Brondell RO||4-stages||13.8 x 9.2 x 16.5 in||Black||14.6 pounds|
|APEC RO-90||5-stages||16 x 5.2 x 17.5 in||White||25 pounds|
|iSpring RCC7AK-UV||7-stages||14.5 x 5.2 x 19.5 in||White||31 pounds|
Now that you have taken a look at our list of the best reverse osmosis water filter reviews, you probably have a better idea of the type of system you believe will work best for your situation. However, before you make your final decision, we encourage you to take a close look at our carefully crafted buying guide—especially if you have any questions or doubts about the RO water systems you may be considering.
Our buying guide focuses on commonly asked questions, things to look out for, and what to expect from certain brands. It will cover the essential information you need to know about the best reverse osmosis system selections currently available. While reading through our buying guide, it is important that you keep your needs and preferences in mind. There is no specific system out there that is best for everyone, if there were there wouldn’t be so many options to choose from. The objective of this page is to ensure our readers are getting the best selections for their needs—so, keep reading to learn more and find what will work for you.
What is reverse osmosis and how does it work?
Reverse osmosis is a filtration process that rids your water supply of harmful and unwanted contaminants. It utilizes a membrane that is semipermeable and composed of tiny pores that will trap contaminants and allow the filtered water to flow through. The waste that is trapped by the membrane is referred to as brine or waste. Reverse osmosis, specifically, prevents any of the waste from seeping into your clean water supply.
So, how does reverse osmosis actually work?
In essence, reverse osmosis filtration systems operate in a number of stages, which we will discuss further later on. For the most part the number of these stages ranges from 3 to 7, depending on the filtration system you choose. No matter what system you consider, you will find that all RO systems have a prefilter and a carbon filter.
The first step of the reverse osmosis filtration process is prefiltration. Here there is a sediment filter and a carbon filter. This step rids your water supply of sediment and chlorine that could potentially clog or damage the system’s reverse osmosis membrane.
Next, your water will be filtered through the RO membrane. Here, contaminants that are completely dissolved will be reduced or stripped from your water supply. As we will discuss later, many filtration systems offer additional filtration stages beyond this point and others offer a remineralization stage as well.
Once the filtration and remineralization stages are completed, your water supply will flow through a post filter before you drink it. In terms of how much water gets filtered per day, you will find this differs from system to system and is an important factor to consider before making your purchase.
The different stages of reverse osmosis filtration
As we mentioned above, reverse osmosis systems range in stages from 3 to 7 and the option you choose is dependent on your needs. Here we will briefly discuss the different stages and what each of them do. Keep in mind that some of you may only need a 3 or 4-stage system while others may need a 7-stage system. If you are unsure of the quality of your water, it’s important that you take the time to test it to ensure you are investing in a system that will effectively filtrate your water supply.
The first stage of the filtration process of a reverse osmosis system is known as the prefiltration stage. Here the system has a carbon filter and sediment filter in place so it can effectively rid your water of any solid contaminants. This stage is vital because it will safeguard the remaining filters from solid debris that would cause clogging.
Stage 2 and Stage 3
Stages 2 and 3 are the most important process for most systems. These stages utilize the permeable RO membrane and additional carbon filter to further purify your water supply. During these stages your water will be cleansed of any chlorine, odors, and many other contaminants that can negatively impact the taste and color of the water you drink.
Chlorine is not the only chemical in your water supply that can affect your health. There are actually thousands of possible elements that could be in your water supply. The fourth stage provides additional filtration for these contaminants—the most important to mention being lead, chromium, and fluoride.
If you get a system with more than 4 stages, the fifth stage will encompass the post filtration process. However, keep in mind that the order may change if you choose to purchase a system that offers 6 or 7 stages of filtration.
During the post filtration stage of the process, your water will pass through a final membrane that will rid your water supply of any debris that may be in your water storage tank. This is essential, especially towards the end of the life of the filter that is in use.
Additional stages: Stage 6 and Stage 7
Some of the more effective and powerful systems may have up to 7 stages of filtration. These are essential to those of you with well water or city water that is of lower quality, so it depends on where you live. Keep in mind that the post filtration stage is always the final process, but for the purpose of explaining the stages we will refer to the additional 2 as the sixth and seventh stage.
The sixth stage is known as the remineralization process. Reverse osmosis filtration will rid your water supply of all contaminants, including those that are good for us. The remineralization process will restore your water supply with calcium and magnesium as well
as neutralize its pH level.
The seventh stage is essential to those of you with well water and is known as UV sterilization. During this stage, UV light is used to rid your water supply of harmful bacteria and viruses that may be present. As noted earlier, this stage can come earlier if the system does not employ the remineralization process, so it is referred to as the seventh stage merely as reference.
What contaminants will a reverse osmosis filtration system remove?
Before delving into this topic, it is important to note that the level of contaminants that will be removed or reduced from you water supply is dependent on they system you purchase. When choosing your system, it’s important to consider your water supply because the level of contaminants is not the same for everyone.
For example, if you have city water then your water supply will be treated int the city’s treatment plant and stripped of harmful bacteria and viruses. On the other hand, if you rely on well water, you may want to look into a system that allows for additional filtration against bacteria and viruses.
Generally, reverse osmosis filtration systems will greatly reduce or almost eliminate your water supply of arsenic, chlorine, fluoride, herbicides, pesticides, sediment, sodium, and VOCs—to name a few. The best systems, like many of the selections we have chosen for our list of reviews, will greatly reduce and virtually eliminate lead along with over a thousand other contaminants.
It is strongly recommended that you test your water supply before you purchase your filtration system. This is specifically important for those of you who may reside in areas with a high presence of harmful metals and chemicals in your water supply. Make sure you choose a system that is designed to filter the quality of water you have to ensure you have the safest drinking water possible.
Exceptional brands to look out for
As you can see, our list of reviews features a diverse selection of RO systems and a variety of brands to choose from. You will find that some brands arerepeated on our list but, since you can’t argue with an excellent product, we decided to showcase multiple models from the same manufacturer. Here we will briefly discuss some information about each of the brands we feature and why they are a great selection to consider. Keep in mind, however, that these brands don’t represent all of the selections out there.
The iSpring brand continually manufactures and produces some of the best reverse osmosis water filtration systems out there. This family-owned business has been around for more than 10years now and, since their inception, they have maintained a reputation that’s backed up by all of their products.
The brand’s main focus is on water filtration systems and they strive to continually produce innovative systems that are in sync with the most current technology regarding water filtration. Regardless of your budget or the type of system you are looking for, specifically, you will find this company has something to offer everyone.
Overall, they are definitely one of the best brands to choose from and their customer service is among the best in the industry. If you want a quality product that is designed to last you for years to come, then iSpring is a great way to go.
For those of you looking for a water filtration system that will continually provide you with pure water through the years, you will find that the Home Master brand is one of the most competitive manufacturers out there. This company has been around since 2002 and, since they first started out, they have earned quite the reputation.
Not only are their RO water filtration systems up to par to the highest safety and quality standards, but they’re also specifically designed to be easy to use and maintain. If you’re on the hunt for a hassle-free system, this is one of the best brands to take into considerations.
All in all, their products range in prices and features but the one thing you will find across the board is their efficiency and effectiveness. With a Home Master filtration system, you can trust the water is of the highest caliber.
APEC is a company located in California, where all of their filtration systems are also manufactured and tested. The brand stands behind their products and ensures that each system is made of high-quality products you can trust for the long haul. Many of their filtration systems are also WQA-certified for safety and quality—meaning their systems are tested and proven to deliver the purest water.
When it comes to filter construction, the APEC brand features patented technology that ensures you get a durable, effective, and efficient filter. Most of their systems are also designed to be compatible with both well and city water, so anyone can use them. They have been around for almost two decades now, and since their inception, their customer service and technical support team has been one of the best out there.
At the end of the day, if you are looking for an RO water filtration system that has been tested for quality and safety, then APEC is an excellent company to consider. They’re ANSI accredited and consistently produce effective and durable systems that have been backed up by countless users over the years.
Here we have another brand featured on our list of reviews. The Brondell company has been around since 2003 and was founded by Dave Samuel and Scott Pinizotto, with Mark Cuban as an initial investor. With a focus on innovative technology, this brand is one of the more techie selections available to choose from.
Brondell produces a variety of different products—they actually started out producing toilets—so, RO systems are not their only focus. They manufacture each of their filtration systems with high-quality materials to ensure their buyers receive a system they can rely on for years to come.
Since their launch, Brondell has become well-recognized in the industry. They have received multiple awards over the years as a testament to their quality. All of there RO water filtration systems are tested for safety and quality, which has earned them the highly sought after WQA certification. At the end of the day, you can’t go wrong with Brondell if you decide to invest in one of their systems.
Chances are you have heard of Whirlpool—we’d be surprised to hear otherwise! Whirlpool produces a wide variety of product and has been a leading brand since its foundation in 1911. Over the years they’ve evolved into the company they are today and have earned their spot as one of the best in the industry.
If you decide to invest in a Whirlpool reverse osmosis filter system you will receive a product that is easy to use, requires minimal maintenance, and that will last you for as long as you need it. Whirlpool filtration systems are also designed to look sleek and compact, so it will take up minimal space and look great once you set it up.
All in all, Whirlpool holds their products to the highest standards, and their reverse osmosis systems are no different. With one of their filter systems you can be sure to receive a product that is both effective and efficient without sacrificing durability or life. If you go with Whirlpool, you’ll be making a long-term investment you can rely on.
Pros and cons of using a reverse osmosis water filtration system
No matter what you are purchasing, there is always a list of pros and cons to take into consideration—and RO systems are not the exception to this rule. So, lets go over common pros and cons associated with these types of filtration systems.
The biggest benefit offered by RO systems is how efficient and effective they are atreducing the contaminants in your water supply—some can do so by up to 99%. These systems also deliver better tasting water that is odor free since they strip your water of chlorine. For the most part, they are also easy to install, clean, and maintain. A minimal amount of water goes to waste, making them an eco-friendly alternative.
RO systems are also available in a variety of sizes, and many of them are really compact—so even if you live in a small space you can still have one. That being said, even the larger ones are easily portable, so if you move you can take your system with you.
Now that we have gone over the benefits, it’s important to take a look at the cons. If you choose an undersink system, you may end up with minimal sink storage and if you choose a countertop model you will also need to sacrifice space. These systems also require an
investment—even the more cost-effective options can be a little pricey.
Factors to take into consideration before making your purchase
Whether you are considering an undersink osmosis system or a countertop selection, it’s important to consider the space you are working with and the size of the system. Our list of reviews features a variety of selections, some of which are more compact than others.
The undersink models we chose are, for the most part, compatible with the standard sink size. However, it is important to note that there may be instances where it may not be compatible, so make sure to check with the model’s manufacturer if you have a unique situation.
Some undersink reverse osmosis systems are bulkier than others as well. If you want to ensure you have plenty of space between your sink so you can still use it for storage, make sure to accurately measure the space and compare it to the systems you are considering.
For those of you with limited space, you may want to consider a countertop system. These are much more compact in size and won’t take up too much space. These are a great solution for those of you in smaller residences, apartments, and even RVs.
Reverse osmosis systems are not only available in various sizes, but they also come in a
variety of capacity options to choose from as well. When we compiled our list of reverse osmosis system reviews, we wanted to ensure there was something on there for everyone. While we have tankless selections on our list, if you want a system that comes with a tank, you will need to take consider what capacity will work for you. In order to assess its capacity, you’ll have to take a look at the system’s GPD rating.
For the most part, the smaller (and more common) tank sizes will hold up to 3gallons of water at a time, although they will be able to filter up to 50 gallons per day. If you need to be able to store more water at a time you can look into the larger options or consider purchasing an additional tank for added water storage.
Does it come with everything you need to install or set it up?
When it comes to RO systems, unless you get a countertop selection, you will need to go through the steps of properly installing your system. The products we selected come with everything they need for you to install them, although some require you purchase the tank or cover separately.
For the purpose of simplicity, many users will prefer to invest in a product that will come with everything they need to install it. Before you make your purchase, make sure to check in with the manufacturer and ensure you will receive everything needed for proper installation, especially if you are purchasing from a third-party retailor.
Although these systems are designed to fit most sinks and faucets, that does not mean they always do. More specifically, if you have a pull-out, sprayer, or unique faucet, the system may not be compatible with your faucet and you will need to replace it.
Will you need to purchase the faucet separately?
Some of the systems featured in our product reviews will require that you purchase a faucet separately, although some will be compatible with your current faucet. On the other hand, many of the products we chose will come with a lead-free faucet that you can use with the system.
Another important factor to consider here is whether you have an air gap or non-airgap faucet. If you have an older or “cheaper” faucet, then you may have an air gap faucet. The problem with air gap faucets is that they are much noisier and more prone to leaks. If you purchase a system that comes with a faucet, you will receive a non-air gap faucet, which is quieter and leak resistant.
Is the faucet lead free?
If you decide to purchase one of the model’s that come with a lead-free faucet then you are in the clear. However, it is important to note that if you live in an older home with older appliances and fixtures, you may want to consider replacing your faucet with an updated and certified lead-free model. If you want to get the most from your investment, it would be easier to go for a RO system that comes with a lead-free faucet.
Does it fit your budget?
There is no standard price for RO system and, as you may have noticed, they range from affordable to pricey. If you are on a strict budget, you will need to make sure to stick to it—which shouldn’t be difficult since the more cost-effective selections on our list are excellent options to consider regardless of what you can or can’t afford.
Warranties and guarantees
When a company offers a warranty or guarantee, it is because they stand behind quality and effectiveness of their product. A great way to determine how good the system is—outside of reading product reviews—is by looking for an option that offers a warranty that covers incidentals for a period of time. Although not all of the selections on our list of reviews offer a warranty, many of them do.
Access to customer service
There are many companies that strive to provide their customers with a technical support system that they can reach when an issue arises. Whether you are tech savvy or not, this is an important feature for those of you who want access to a backup support system in the instance that you run into a problem—whether it is during the installation process or years after you have had the system.
For the most part, all of the brands on our list have an excellent customer system. Yes, some are better than others, but overall, they are some of the best in the industry.
Pump vs. No pump
As you read through our list of product reviews, you will notice there are systems that come with pumps and others that don’t require one. Whichever one you get depends on your needs and preferences, so make sure to be aware of the differences.
Reverse osmosis systems that require a permeate pump will take up more space than those that don’t. However, they are also more efficient. The pump allows the system to use up stored pressure as momentum to drive water out of the storage tank. Although its bulkier, a system with a pump will help you save water (and money) and is an eco-friendly option to consider.
On the other hand, RO systems that don’t require a pump are much more compact and will leave you with more room to work with. These are perfect for those of you who have smaller undersink storage spaces or who simply want a more minimalistic design. However, it is important to note that while you will gain space, you will also lose efficiency and create more water waste. All in all, these are a great option for smaller households and more compact spaces.
Where you can install and use a reverse osmosis system
Reverse osmosis water filtration systems are pretty versatile and can be installed in a variety of ways. While they are rarely available for whole-house water filtration, you still have lots of options. Let’s take a look at the different installation possibilities you will have to choose from.
Undersink RO systems
The under sink installation is the most common option you will have when looking for one of these filtration systems. Some of these models will be bulkier than others, so make sure to take your personal space into consideration. Some of these models offer additional installation options; check in with the manufacturer to weigh out all of your options.
Many undersink RO systems can also be connected to your refrigerator. While not all of them offer this option, those that do are just as effective and efficient. If you choose to go
this route you will purify your water and your ice.
Countertop filtration systems
You may have noticed that our product reviews featured a few countertop options. These systems are perfect for those of you dealing with minimal space or with smaller household sizes. If you don’t have the space under your sink or if you just want something more portable, countertop systems are a great minimalistic option to consider getting. These systems are just as effective and efficient as the rest, so there is no need to worry about quality if you decide to get a countertop ROsystem.
How to install an undersink reverse osmosis filter system
For the most part, installing an undersink RO system is pretty universal. However, some steps may differ from brand to brand, so make sure to check in with your product’s instructions before proceeding with the following steps.
1. Before beginning the installation process, you will need to disconnect your cold water supply by removing the feed pipe.
2. Next, you will need to put in the T-connector and push fit connector that comes with your RO system.
3. Once that is completed you will attach the waste pipe—if you want a quieter system, make sure to drill the hole in the horizontal portion of your system’s pipe.
4. The next step will require that you mount your filter; make sure to do so in a way that will make future filter changes easy to do.
5. Once you’ve securely mounted your filter, you will need to attach the system’s tank. This is best done by attaching it to the base of your cabinet, so it is on a flat area.
6. Connect your water pipes by following the instructions provided by your system.
7. If you have a model that features UV sterilization you will now be able to plug the system in.
8. Now you can turn your water supply back on and make sure to keep a close eye out for any potential leaks.
9. For the final step you will need to fill your water tank to the fill line and then empty it. This will get your filters going—but make sure you don’t drink any of the water until this step is completed.
Maintaining a reverse osmosis system
Different systems require different levels of maintenance, but for the most part you can expect the following:
Regular filter changes
While some systems have filters that can last for over a year, some need to be changed more frequently. If you have a system that features an indicator light it will be easier to know when you need to change your filter. If it does not, check with the manufacturer’s instructions to keep track of filter changes. Regardless of the type of system you have, it is essential to change the filter at the appropriate time to ensure your water is free of harmful contaminants.
The RO membrane is the most essential component of these systems. They are designed to be semi-permeable and eventually they will need to be replaced. Overall, these will need to be replaced about every 2to 5years. Make sure to check in with the manufacturer and follow their instructions regarding the membrane replacement.
Calcite filter replacement
If you purchase a system that offers a remineralization stage, your system will also utilize a calcite filter. This filter typically needs to be replaced every 2to 5years as well. Make sure to check in with your system’s specifications to ensure your water is being adequately restored withthe necessary minerals that it is stripped of during the filtration process.
Will a water softener be necessary?
First and foremost, it is important to note that there are reverse osmosis filter systems that also come equipped with a water softener component. So, if you know from the get-go you will need a water softener as well, considering a system that offers this feature is an excellent choice.
That being said, if you are unsure if you need a water softener, you will need to take a look at your GPG rating. The GPG rating refers to the grains per gallon in your water supply, and if it is above 7then you will want to consider purchasing a system with a water softener.
If you need a water softener but find a system that will work better for you without the feature, you can purchase a separate water softener. The most important thing to remember is that if you have a rating of 7 GPG or above, you will need to have a water softener to preserve and extend the quality and durability of your RO system.
Reverse osmosis filtration system vs. bottled water
If you aren’t sure about the difference between RO water and bottled water, you are not alone. This is a commonly asked question and it is important that we address it so you are fully informed.
In essence, yes, bottled water is pretty safe to drink, but it is oftentimes no better than the cleanest tap water out there. With an RO system, you will get purer water that reduces or eliminates the presence of contaminants that can sometimes be found in bottled water.
Moreover, with a reverse osmosis filter system you will save a lot more money and make a greater impact on the planet. While the RO system will be a pricey initial investment, over time, you will find that the money you will save far exceeds the price you will pay. Lastly, our planet is already riddled with plastic waste. Using a reverse osmosis system is an excellent way to reduce your carbon footprint and help the planet, one plastic bottle at a time.
Now that you have gone through all of our reverse osmosis water filter reviews and carefully read through our buying guide in its entirety, you should feel confident in choosing the best reverse osmosis system for your household. Before you make your final selection, however, make sure that you have considered all of your needs and preferences and that the system you go with will cover them all. Regardless of the type of system you choose, the selections on our list are all effective, efficient, and high-quality models that are currently the best options you will have to choose from.
First and foremost, make sure your system will work with the quality of your water and that it offers the capacity that you need. If you rely on well water, you will definitely want to consider anRO system that offers UV sterilization as well. Keep in mind that reverse osmosis will also strip your water supply of essential minerals, such as calcium and magnesium. If you don’t choose a system that will resupply your water supply with calcium and magnesium via a remineralization process, make sure you supplement your diet with those minerals via supplements, food, or electrolyte beverages.
All that being said, you can’t go wrong with the options we feature on our page. The undersink systems are easy to install and the countertop models are just as effective and efficient as the rest of the products on our list. Our selections also vary in pricing, so feel confident making your choice knowing that there is an option featured for everyone!
We hope our product reviews and buying guide made the process of choosing the best osmosis water filtration insightful and easy to do!