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Reverse Osmosis Water Filter System

I f you are a health-conscious person, you probably realized by now that tap water is filled with impurities that can affect your health on many levels. From bacteria to sand deposits and even chemicals, a worrying amount of pollutants can be discovered in tap water. Although the municipality uses a series of disinfecting methods, some of these toxic substances can reach into your glass.

Fortunately, you can take measures of your own by using a filtration system and we highly suggest reverse osmosis. It is based on a semipermeable membrane that manages to capture almost every impurity, thus delivering safer water for household use. The market abounds with models that state to offer the maximum performance, but only some of them are worth the money. Find out which ones in the chart below.

Top 12 Reverse Osmosis Water Filter Systems Compared

Photo
Product
Tank Capacity (gal.)
Daily Production (GPD)
Number of Filters
Operating Pressure (PSI)
pH Range
Price

Best Overall
3.2
75
6
45-70
3.0-11.0

Best Reverse Osmosis Water Filter for Well Water
4
50
5
40-85
2.0-11.0

Editor’s Choice
4
90
5
40-85
2.0-11.0
3.2
75
5
45-70
3.0-11.0
3.2
50
4
40-95
4.0-10.0

Best Reverse Osmosis Water Filter for Drinking Water
4
50
5
40-85
2.0-11.0

Best Reverse Osmosis Water Filter for the Money
3
14.5
3
40-100
4.0-10.0
3.2
50
5
40-80
N/A
2.5
50
5
40-80
N/A
3.2
50
5
50-100
N/A
2
50
6
40-80
4.0-8.0
3.2
35
3
40-100
N/A

1. iSpring RCC7AK

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 75 GPD
  • Tank Capacity: 3.2 gal.
  • Operating Pressure: 45-70 psi
  • Operating Temperature: 40-100°F
  • pH Limits: 3.0-11.0
  • Filters: 6
  • TDS Reduction: 90%+
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:3


As the majority of RO units, this one also goes under the sink along with the six cartridges, each destined to attract and dispose of a certain substance, and a 3.2 gallons container that can deliver up to 75 gallons each day. With it, you will manage to get rid of odors, sediment, and harmful substances, and at the end of the procedure, useful minerals are further added and the pH level is balanced.

Upkeep implies changing the cartridges every 6 to 12 months, to ensure they operate at maximum capacity, except the RO membrane with a lifespan of 3 years. Moreover, once you register the system online, you will benefit from assistance in repairs for 1 year. Moreover, if you are not happy with it, you can get your money back during the first 12 months after the acquisition.

Pros

  • Included pH filter and remineralizing filter
  • Six purifying steps
  • Low-key installation
  • Certified to eradicate 99% contaminants
  • Extended money-back warranty

Cons

  • An uncertain amount of minerals added
  • Leaks were reported


Verdict

Made by a reliable brand, this is one of the widely-popular models in many households. While capturing almost every toxin in the water, it offers an extra phase of water-enhancement. The remineralization phase is a great addition because the beneficial minerals are unwillingly taken out while the cleaning process occurs and they need to be added once again.



2. APEC ROES-50

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 50 GPD
  • Tank Capacity: 4 gal.
  • Operating Pressure: 40-85 psi
  • Operating Temperature: 40-100°F
  • pH Limits: 2.0-11.0
  • Filters: 5
  • TDS Reduction: 99%
  • Destroys Microorganisms:


APEC ROES-50 does an awesome job and will imply a smaller investment. Since it’s an under-sink model, it will conveniently stay out of sight, without taking precious counter space. The chrome faucet is a great addition that makes it look extremely stylish. With 5 cartridges that perform five cleaning steps, you can be certain that it will manage to collect most of the unwanted substances and enhance the flavor and odor. It boasts a generous 4-gallon reservoir and the 50 GPD membrane quickly refills it. Whenever the reservoir fills up, it will instantly turn off to prevent spills and mess.

In addition, it is quiet, it doesn’t take a lot of effort to fit and it delivers superior results due to the qualitative materials. Once you buy it, you will benefit from free lifetime technical support for any possible problems and a warranty of 1 year, with a 30-days period of refund.

See here a more detailed analysis of the APEC ROES-50 if you want to further analyze the system and sort out whether it is the best option for your needs or not.

Pros

  • Generous storage tank
  • Automatic turn-off
  • Durable filters
  • Affordable
  • Features a simple installation process

Cons

  • Short warranty period
  • No remineralization filter


Verdict

This is one of the highest-rated RO models that uses a remarkable number of 5 different stages to certify the best sanitizing results. To prevent any unpleasant situations, the manufacturer also added a programmed shutoff. The only major drawback the short warranty offered for the product.



3. APEC RO-90

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 90 GPD
  • Tank Capacity: 4 gal.
  • Operating Pressure: 40-85 psi
  • Operating Temperature: 40-100°F
  • pH Limits: 2.0-11.0
  • Filters: 5
  • TDS Reduction: 99%
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:3


Finding a truly reliable model might seem impossible, but you will surely appreciate this one. It can collect around 99% of dangerous impurities like bacteria, hard metals, rust, or chemicals, thus enhancing the overall quality. The entire assembly can sanitize a total of 90 gallons each day and stores it in the generous reservoir that conveniently sits under the sink. The only thing left in sight is the elegant spout with a chrome finish.

The method is complex but not complicated. The water is transported through the five filters and, step by step, they manage to collect and eliminate the chemicals they were intended for. Most of the unwanted substances are taken out, for top quality water that is appropriate for bathing, cooking, or drinking. After registering the product, you will experience peace of mind with the warranty that lasts for 2 years.

Pros

  • Durable filters with low maintenance
  • Includes a chrome tap
  • Simple installation procedure
  • USA-based company

Cons

  • Not very compact
  • The water output is lower than stated


Verdict

With all the certifications required, this unit manages to increase the quality with no effort from your part. Made with safety in mind, it is designed to capture more than 1000 known pollutants so you will benefit from tasty and safe-to-consume water. We also appreciated that it is supported by the manufacturer for two years.



4. iSpring RCC7

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 75 GPD
  • Tank Capacity: 3.2 gal.
  • Operating Pressure: 45-70 psi
  • Operating Temperature: 40-100°F
  • pH Limits: 3.0-11.0
  • Filters: 5
  • TDS Reduction: 95%
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:3


Another great alternative to reflect on is iSpring RCC7. Similar to the former models, it must be placed under your home sink and it can be effortlessly done by following the depicted guidelines. The bundle comes with 5 different filters that take out sediments, odors, germs, and other pollutants. Also included are the 75-gal reservoir and the nice nickel faucet.

Furthermore, for more convenience, the model is enhanced with a programmed shut-off, so when the reservoir is filled up, the filter instantly shuts down. The do-it-yourself installation, along with the 3-year warranty, guarantees you will only encounter the welfares of this water-cleaning assembly.

Pros

  • Extended capacity of filtration
  • Comes with an automatic shutoff
  • 3-year warranty
  • Budget-friendly
  • Compact and quiet

Cons

  • Only one faucet style
  • Lacks a pressure regulator


Verdict

iSpring RCC7 is an inexpensive RO purifying system that lets you benefit from unlimited clean water. With it, you can eliminate the costs of buying store water and the dangers of tap water. The manufacturer improved it with a set of highly-efficient filters and a substantial warranty to conclude this smart purchase.



5. Home Master TMAFC

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 50 GPD
  • Tank Capacity: 3.2 gal.
  • Operating Pressure: 40-95 psi
  • Operating Temperature: 40-100°F
  • pH Limits: 4.0-10.0
  • Filters: 4
  • TDS Reduction: 99%
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:1


Our next recommendation is the TMAFC model from Home Master. Before buying it, make sure there is enough room underneath your sink to accommodate the 3.2- gal container that can produce 50 gallons each day. The elegant chrome tap goes on top of the sink.

The modular design is a tremendous plus as the entire filter is throwaway, so upkeep and parts replacement are quite easy. As for performance, this particular system transports the water through an industry-leading number of 7 stages. The result is clean, healthy water at any time. Additionally, it adds important minerals two times along the filtration procedure.
Another of its amazing aspects is the automatic shutoff that forces the storage tank to close when it’s filled up. And it doesn’t end here, as there is an outstanding 5-year warranty available for the model.

See here the complete review of the Home Master TMFAC if you want to learn more about the product before you reach a definite conclusion.

Pros

  • Long warranty
  • Comes fully assembled
  • Innovative all-in-one design
  • Double remineralization
  • Long-lasting RO membrane

Cons

  • Only one faucet color
  • Bulkier design


Verdict

It delivers great performance due to the extended 7-stage operating system. As a novelty, it brings the double remineralization method without diminishing the water stream and it helps you eliminate impurities and enjoy healthy water every day. In comparison to other models, this one is backed by a more generous warranty of 5 years.



6. APEC ROES-PH75

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 50 GPD
  • Tank Capacity: 4 gal.
  • Operating Pressure: 40-85 psi
  • Operating Temperature: Up to 77°F
  • pH Limits: 2.0-11.0
  • Filters: 5
  • TDS Reduction: 99%
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:3


Similar to APEC ROES-50, the ROES-PH75 provides excellent performance when it comes to capturing unwanted pollutants. The main dissimilarities are that ROES-PH75 has a superior capacity of 75 GDP – and 6 stages instead of 5. The last phase increases the pH level. It relies on a filter to capture large bits like dust or sand and two other carbon cartridges for chlorine, disagreeable tastes, smells, and VOCs. It also uses a TFC RO membrane that eliminates TDS and dangerous pollutants, a coconut shell filter that deals with the residual taste, and a re-mineralizing calcium filter to modify the pH level.

The system helps remove germs and chemicals present in tap water while adding calcium carbonate. The mounting is straightforward and it requires little maintenance. It includes a nickel tap with a 360-degree rotation and a smooth disc valve. If you register the product, you will receive a 2-year warranty.

Pros

  • Six cleaning phases
  • Durable cartridges with little maintenance
  • Stylish lead-free spout
  • Satisfying water flow
  • Raises the pH level

Cons

  • Bulky design
  • There’s no possibility to choose the faucet color


Verdict

In a conclusion, it can be a satisfactory choice because it takes out a wide range of impurities without affecting the stream. Aside from that, it offers sanitized alkaline water right from your tap thanks to the final remineralizing stage. The high-grade cartridges require low maintenance.



7. Whirlpool WHER25

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 14.5 GPD
  • Tank Capacity: 3 gal.
  • Operating Pressure: 40-100 psi
  • Operating Temperature: 40-100°F
  • pH Limits: 4.0-10.0
  • Filters: 3
  • TDS Reduction: 90-95%
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:5


This filter is destined to fit underneath regular sinks and it is exceptionally competent in removing an impressive number of chemicals through the included 3 cartridges. To maximize the results, a pre-filter is featured to capture large bits like sand and fragments. The RO membrane manages to collect solids and organic matter, then the water gets to the postfilter that deals with unpleasant flavor and smell.

The water spout is also contained in the package, as well as the accessories so the fitting is not cumbersome.
All the cartridges are replaceable and there is an indicator light to notify when it’s time to change them. The warranty available is a limited 1-year, which is an average in the niche.

Pros

  • Hassle-free filter replacement
  • Intuitive indicator light
  • Contains a stylish chrome spout
  • Features a quiet operation
  • Complies with all safety and quality standards

Cons

  • Short warranty


Verdict

The system is available at an inexpensive price and it includes all the mandatory accessories for stress-free operation. Not only it sanitizes the water, but it also provides a good and almost instant water flow. Thanks to the indicator light, you will always know when it’s time for some filter replacement.



8. Express Water RO5DX

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 50 GPD
  • Tank Capacity: 3.2 gal.
  • Operating Pressure: 40-80 psi
  • Operating Temperature: 40-100°F
  • Filters: 5
  • TDS Reduction: 99.99%+
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:3


This model provides 5 stages of sanitizing just so you will know for sure the water at home is pollutant-free. Starting with large sediments, VOCs, and dangerous metals and minerals, this unit can deliver 50 gallons each day, with an impressive 0.8 GPM flow rate.

Some of the strongest assets include the doubled-sealed filters for superior filtration and the leak-stop valve that automatically stops water flow once it detects excess water. Also, the quick connect system is labeled and colored to set it up much easier while the brass feed adapter is suitable for under sink pipes ranging between 1/2 and 3/8 inches. The stylish nickel faucet completes the system. Unfortunately, the manufacturer only offers a 1-year warranty.

Pros

  • Includes a leak-stop tap
  • All filters feature double seals for increased efficiency
  • Fast set-up
  • Packed with extra filters

Cons

  • Short warranty
  • Doesn’t include a remineralizing phase


Verdict

The system is available at an inexpensive price and it includes all the mandatory accessories for stress-free operation. Not only it sanitizes the water, but it also provides a good and almost instant water flow. Thanks to the indicator light, you will always know when it’s time for some filter replacement.



9. Global Water RO-505

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 50 GPD
  • Tank Capacity: 2.5 gal.
  • Operating Pressure: 40-80 psi
  • Filters: 5
  • TDS Reduction: 99%
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:1


Another effective product is this one empowered with a total of 5 sanitizing steps, starting with a sediment filter and ending with an inner carbon filter, all used in eliminating dirt, nasty smells, and dangerous chemicals. The innovation is the metal tank that can hold 2.5 gallons, with a daily capacity of 50 gallons. Therefore, you will have instant access to bacteria-free water at all times.

The set comes pre-installed and features colored tubing so fitting it is pretty easy, even if you don’t excel at installing stuff. The lead-free spout guarantees excellent water pressure for fast filling. To prevent leaking and back pressure, it is furnished with double-O rings and a flow restrictor. Also, it is equipped with a turn-off valve to avoid water waste.

Pros

  • The metal tank complies with safety standards
  • Money-back warranty
  • Extra filters included
  • It comes pre-installed

Cons

  • Parts were reported missing


Verdict

The RO-505 is an inexpensive yet qualitative alternative on our list. Installing and taking care of it is not very demanding – once you understand the instructions – and it includes a nice silver faucet. Also, a set of spare filters is included, which is a great advantage.



10. Olympia Water Systems OROS-50

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 50 GPD
  • Tank Capacity: 3.2 gal.
  • Operating Pressure: 50-100 psi
  • Operating Temperature: 00-100°F
  • Filters: 5
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:4


For less money, you can always go with this product that uses a total of 5 filtering methods to ensure almost 100% water purification. The assembly goes underneath the sink to maximize utility and includes a sleek chrome spout with a generous stream. Since the tubing and wiring are color-coordinated, it will be a breeze setting it up.

It requires a minimum pressure of 50 psi and an operating temperature of 40 F and it can handle a maximum of 0.75 GPM. The reservoir can hold 3.2 gallons at a time and delivers 50 GPD. It has passed all quality and safety tests, so you can rest assured in what concerns any possible leaks or proper internal air pressure. For extra peace of mind, the manufacturer warrants it for 1 year and will return your money during the first 30 days in case you are not satisfied with your purchase.

Pros

  • Comes with a nice chrome-finish faucet
  • Features an auto shut-off
  • Hassle-free setup
  • Great value for the money

Cons

  • Not very compact
  • Short warranty


Verdict

In case you want to limit your expense but still benefit from a high-class system, this is a great alternative to consider. It was rigorously tested, so you won’t be disappointed by its performance. This unit fits below most sinks but it’s rather bulky. Also, we would’ve wanted it to be covered by a longer warranty.



11. Pelican Water PRO-RO-PC Pro 6-Stage

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 50 GPD
  • Tank Capacity: 2 gal.
  • Operating Pressure: 40-80 psi
  • Operating Temperature: 40-100°F
  • pH Limits: 4.0-8.0
  • Filters: 6
  • TDS Reduction: 96.5%


This high-quality model is designed by Pelican and manufactured in the US, so it gained our trust from the beginning.
It met all the certifications in terms of pollutants reduction and comes with a bunch of features that turn it into a satisfactory purchase.

Filtration Performance

Equipped with two different cartridges, it manages to take out large residues and debris, enhance taste and odor by taking out chlorine odors, and get rid of harmful substances like lead, arsenic, or fluoride. A total of 6 steps are performed to ensure that over 60 contaminants are eliminated. Also, the flow is improved by 30% while water waste is dropped by 50%.
Since the sanitizing process takes some of the beneficial minerals along with the bad ones, this filter includes a final step that restores some of the useful minerals and regulates the pH level.

Construction

The entire construction is made of quality materials so it is made to last. Although it’s not the most compact out there, it fits under regular-sized sinks with ease. It weighs only 11 pounds and comes with a 2-gal reservoir. One of the filters is placed at the front and another one at the back, thus making it wider than similar models that come with filters located at the top.
We appreciated the freedom in choosing the spout style that best meets the user’s tastes, with 3 different colors available: nickel, chrome, and bronze.

User Convenience

Due to the indicator light, the machine will notify you when you must change the old cartridges. This should take place once every 6 months or so. If for any reason, you are not happy with its performance, you have the option to get your money back within 90 days after the purchase.

If you are interested in seeing what other water decontamination units the manufacturer has to offer, we recommend that you check out here the best Pelican whole house water filter systems and draw comparisons to reach an informed conclusion.

Pros

  • Made by a trusted brand
  • Multiple faucet designs
  • Straightforward operation
  • Small and light design
  • Lower water waste level

Cons

  • No automatic shut-off feature
  • Short warranty


Verdict

Pelican Water PRO-RO-PC is very competent in minimizing the level of chemicals that can travel through tap water. With 6 phases of cleaning, among which a mineral filter that remineralizes the water, you can forget about the risks of contaminated tap water. It even notifies you when you have to perform some upkeep. The only downside is the short warranty, only 1 year.



12. Aquasana OptimH2O

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Specifications:

  • Installation Type: Under Sink
  • Daily Production: 35 GPD
  • Tank Capacity: 3.2 gal.
  • Operating Pressure: 40-100 psi
  • Operating Temperature: 40-100°F
  • Filters: 3
  • TDS Reduction: 99%
  • Destroys Microorganisms:
  • Filtered Water to Waste Water Ratio: 1:3


The next model that convinced us about its performance is Aquasana OptimH2O. Mounting it is a breeze and luckily, it doesn’t occupy too much space. Besides the Brushed Nickel faucet, you have the Chrome Metal and Oil Rubbed Bronze faucets but they are more expensive. The 24-hour capacity reaches 35 gallons of fresh water per day. Unlike other models that have 5 or 6 filters, this one comes with only 3 filters and a reverse osmosis membrane.

However, it performs very well as it can eradicate most toxins with ease. For receiving the best benefits, it also restores essential minerals like magnesium or calcium. Changing the old filters doesn’t take any particular skills as it includes an indicator and the housing twists off effortlessly.

See here the best Aquasana whole house water filter systems if you want to check out more water purifying units produced by this industry-leading company. More complex in their operation and reliable for prolonged periods, these whole-house products are sure to comply with all of your needs.

Pros

  • Convenient filter replacement notifier
  • Reliable brand
  • Various faucet styles
  • Durable construction

Cons

  • No automatic shut-off feature
  • Only the 2-year warranty


Verdict

The bottom line, this is an efficient option to go with if you want to invest your money in a well-made purifying system. It is highly competent in eliminating the dangerous toxins usually found in drinking water and it is equipped with all the required components for a low-key installation and operation. Unfortunately, it doesn’t include an automatic shut-off feature and is backed by an average 2-year warranty.



Health Risks of Drinking Contaminated Tap Water

To better understand the benefits of the purifying systems, let’s see which are the potential health risks you expose to when drinking contaminated water. Taking the necessary measures to prevent all sorts of dangers is the wisest thing you can do. Here is what specialists say:

  • Thyroid disorders:

    water high in fluoride can seriously affect the thyroid gland. This is possible due to the fact that fluoride can suppress thyroid function, being considered an endocrine disrupter.

  • Kidney issues:

    the organs in our body that are most likely to be affected by poor quality water are the kidneys. Since they filter all the fluids we ingest, deposits and impurities might be left behind. Unfiltered water can cause kidney stones and even kidney failure, especially in people who are prone to developing such health problems.

  • Skin affections:

    many water supplies in the U.S.A. contain high arsenic levels and this chemical contaminant is known for causing all sorts of skin affections. Additionally, some specialists say it is a carcinogen.

  • Neuromuscular disorders:

    water supply contains lead which can cause neuromuscular disorders. This metal is very toxic, so it’s best to eliminate it as much as possible. Once present in the body, lead can cause fatigue, concentration difficulties, or even severe brain damage.

Best Brands to Consider

Although there are many RO systems available, not all of them deliver the same performance. This is why opting for a leading brand is an assurance that you won’t invest your money in a system that won’t perform as expected. In the water purification market industry, brands like Pelican Water, Aquasana, or Spring are widely known because they design and manufacture innovative systems for every house.

  • iSpring

    With a long history behind and plenty of innovation ahead, this Atlanta company manages to produce top-notch purifying systems of all kinds, from undersink to whole house and commercial reverse osmosis. They also design cutting-edge showers and faucets, cartridges, and an extensive range of fittings that match a variety of models.

  • Aquasana

    Another trustworthy brand is Aquasana. The company uses highly-advanced technology to design cutting-edge units, so you can be positive you won’t be disappointed with the performance of an Aquasana product. From whole house units to clean water machine and bottles, the company covers all your needs in what concerns water purification.

  • Home Master

    Numerous customers have been 100% satisfied with the products designed and offered by Home Master, a company that only sells best-in-class units. Currently, their most appreciated models are under-sink, such as the reverse osmosis unit that ranked fifth in our chart.

  • Pelican Water

    Established in 2007, Pelican Water is a leading brand in this industry. The main goal of the company is to manufacture superior purification systems that allow families worldwide to drink clean water regardless of the country they live in. Furthermore, the products made by this brand are environmentally-friendly and easy to preserve. Producing a wide variety of products among which UV disinfection systems or shower filters, the company is definitely a great option to go with.

  • Apec Water

    This leading manufacturer has more than 20 years of involvement in water purification. There are many products manufactured by APEC, including salt-free water softeners, residential and commercial RO systems, car wash systems, and so on. The advantage of these products is that they are durable, efficient, and affordable.

How We Rated the Products

Now, let’s find out more about how the products were rated. When we searched the market for the most unfailing RO filters, we thoroughly analyzed their efficiency and durability, just to make sure you pick the appropriate model. Therefore, we took into consideration the most important aspects, including how much water it can filter and what contaminants it can eliminate.

  • Contaminates removed:

    since the main purpose is to eradicate the common unwanted and to deliver unlimited clean water, it is only natural to know more about this aspect. All the models selected by us can effectively reduce more contaminants, including chlorine, copper, lead, and so on. The reduction percentage is up to 99% or even 100% in some cases, which is quite impressive. This means you will no longer have to be concerned about the possible health risks you expose to when drinking unfiltered tap water.

  • Filters and cleaning phases:

    more filters don’t necessarily mean more efficiency. You will find numerous models with up to 7 cartridges, but the average number is 3. This usually includes a sediment cartridge, a carbon filter, and a RO membrane. Additional phases consist of pre and post-filters with carbon or a final phase that adds beneficial minerals that are usually lost during sanitizing.

  • Daily production:

    the amount of water a filter can provide in 24 hours is measured in gallons per day, or GPD. However, keep in mind that the capacity estimated can be influenced by a series of factors, including the temperature and the pressure or the acidity. For enjoying superior results, it’s recommended that you follow the requirements when installing and handling the filter. While most units deliver around 50 GPD, there are more high-rate models with 75 or even 90 GPD.

  • Dimensions:

    although not an essential characteristic, the size plays a significant role if you don’t have too much space available. Considering that these systems are usually designed for under countertop installation, we aimed to pick the most compact and easy to accommodate ones. Nevertheless, it’s always good to measure how much space your future system takes to avoid any unpleasant situations.

  • Warranty:

    for more convenience and stress-free use, a reliable unit should be supported by a generous warranty that states that the manufacturer stays behind their product for a very long time. While the standard period is 1 year, there are some models that are warranted for 5 years. Also, for some of them, you can get a refund in 30 days or even during the first year of use.

Conclusion

After comparing the best RO products available, it has made it a lot simpler for you to decide on a particular model. All the products made it to this chart due to their excellent performance therefore, you can rest assured that your choice will be unfailing and secure. However, some of them are better in treating well water or come at a more accessible price, or maybe they boast some specific features. Regardless, here are the selected items that are optimal for each job:

Best Overall: iSpring RCC7AK

It is a premium choice and is equipped with high-end filters, built to eliminate up to 99% of more than 1000 dangerous pollutants and microbes like giardia. It is efficient in treating well and tap water with excellent results. The additional sixth stage provides alkaline remineralization and decreases the water’s acidity, providing a neutral, natural taste. Furthermore, it is very simple to put together, as the manufacturer offers written instructions, videos, and technical support.

Editor’s Choice: APEC RO-90

We chose this one because it is so stress-free to install and get running, which are important aspects to consider. Moreover, it provided superior results in removing an extended range of toxins and deposits due to the durable cartridges. The pollutant-removal rate is 99% for common dangerous substances like lead, chlorine, and arsenic. Plus, the daily water production is impressive, reaching up to 90 GPD.

Best Reverse Osmosis Water Filter for Well Water: APEC ROES-50

A popular model on the market, it is picked by buyers for its outstanding capacity to deliver contaminant-free water at a great price. With a daily water production of 75 GPD and a generous reservoir capacity of 4 gallons, it is suitable for larger households where more water is regularly consumed. Plus, it is an excellent choice for well water, as it offers 5 cleaning stages, ensured by premium filters that will eliminate more than 1000 chemicals in a proportion of 99%.

Best Reverse Osmosis Water Filter for the Money: Whirlpool WHER25

Equipped with a strong 3-phase purifying technique, this unit is an excellent deal at a more than reasonable price. Not only the initial price is lower, but it also comes with fewer cartridges, so the expenses in the long run will be reduced. Moreover, the spare parts are surprisingly durable, with an average lifespan of 6 months, while the RO membrane can last up to 2 years until you will need to buy a new one.

Best Reverse Osmosis Water Filter for Drinking Water: APEC ROES-PH75

Specially designed to eliminate chlorine, odors, chemicals, and dangerous bacteria, this system offers premium treatment for tap water and can get rid of over 1000 pollutants. With a maximum ability to deliver 50 gallons each day, it allows your entire family to consume superior-quality water passed through a series of 5 filtration steps.