9 Best Reverse Osmosis System Consumer Reports

Are you in the market for a RO system? If so, you’re likely wondering which one is the best filtration option and why.

Well, wonder no more! Consumer Reports has just released its list of the best RO on the market.

In this article, we’ll take a look at the best reverse osmosis system based on Consumer Reports and testing, and we’ll share some tips to improve the performance of your system.

We’ll also discuss how RO works and what to expect from different models.

By the end of this post, you’ll be able to make an informed decision about which reverse osmosis system is the best performer and why.

Best Reverse Osmosis System Consumer Reports

  • iSpring RCC7AK, NSF Certified 75 GPD
  • Express Water RO5DX Reverse Osmosis Filtration
  • Waterdrop RO Reverse Osmosis Water Filtration System,
  • iSpring water filter system 75 GPD High Capacity Under Sink
  • APEC Water Systems ROES-PH75
  • Home Master TMAFC-ERP Reverse Osmosis
  • Aquasana Reverse Osmosis Under Sink Water Filter System
  • Home Master TMAFC Artesian Undersink Reverse Osmosis
  • PureDrop RTW5 Under Sink 5-Stage Reverse Osmosis

1. Ispring RCC7AK 6-Stage the Best Reverse Osmosis System According to Consumer Reports

The iSpring RCC7AK Under Sink RO Water Softener comes with a high-quality, affordable water filtration solution that reduces the maximum contaminant.

The Reverse Osmosis filter includes an additional 6th stage – an Alkaline remineralization filter which restores healthy minerals.

It can produce balanced alkalinity, which gives your tap water a more natural taste than a regular 5-stage RO water filter.

The RO is designed for do-it-yourself installation, and all necessary parts for installation come with it.

It has a transparent 1st stage housing for easy visual inspection, which allows you to see the water flow through the system.


  • It has transparent 1st Housing for simple inspection  
  • Pre-filters have an extra-long lifespan to remove large quantities of pollutants.
  • RO filter to get rid of the impurities up to. 0001 microns
  • Fine GAC filter for final polishing 
  • It comes with certified to NSF/ANSI/58, 6 Stage Alkaline Remineralization Filtration 
  • Produced in the USA with 60-day money-back assurance. 
  • 1-year great warranty. It is also a lifetime of personal support by GA, USA
  • It comes with a brushed nickel faucet
  • Easy to install
  • 0. 0001 microns rating
  • NSF 58 certified
  • Excellent, US-based support
  • 1-year warranty
  • RO filter also removes some helpful minerals

2. Express Water RO5DX Reverse Osmosis

Express Water RO5DX System is an excellent choice for your home.

It comes with four filters a highly efficient best water filter designed to reduce the following: 99.99% Lead, chlorine, fluoride, nitrates, calcium, arsenic, and more.

The filtration system is easy to install and set up. However, if you need help, you can call Express Water anytime, and their number is in the user manual.

You don’t need to worry about refilling the water filter because Express Water does that for you.

You can also add additional filters to any of their RO systems, including UV, alkaline filters, and ion exchange water filters.

The best part of Express Water is that they have a leak detection system.

They also have an emergency stop leach detector, so you know you are safe against leaks.


Express Water RO5DX includes four filters that are NSF certified.

Filter #1 is a sediment filter that removes rust and silt

Filter #2 and 3. are Granular Activated Carbon and Activated Carbon Block Filters that reduce chlorine, dirt, odors, fluoride, arsenic, and chemicals.

Filter #4 The Reverse Osmosis Membrane removes the most difficult impurities like lead, arsenic, chromium, fluoride,

Filter #5 the Post Activated Carbon Filter removes any possible taste or odor.

  • The RO5DX also includes a faucet and storage tank.
  • Installation is quick and easy because the water filter system has easy-connecting fittings.
  • You can also upgrade the RO5DX with additional filters like an ultraviolet water filtration system, alkaline water system, and deionization water filtration system.
  • The RO5DX comes with Express Water’s warranty covering five-year leaks and defects. The company also provides phone support.
  • Amazing value
  • Five-stage filtration
  • Easy to install and maintain
  • No remineralisation stage
  • A large amount of wastewater

3. Waterdrop Reverse Osmosis Water Filtration System

Waterdrop is the best under-sink reverse osmosis system as per consumer reports with three filters and a tankless design.

The NSF Certified performance of this product is to reduce contaminants including TDS, fluoride, limescale, and heavy metals in tap water.

The intuitive design makes installation quick and efficient.

It can provide 400 gallons of purified water per day. The system can install in just three seconds and change the filter with one turn.

Waterdrop Reverse Osmosis Water Filtration System offers an intelligent, easy-to-install design.

The system can filter 1 cup of tap water in about 12 seconds.

It is the first composite filtration system and tankless design in the US. Additionally, the activated carbon block filter uses high-precision activated carbon granules to improve the taste.

It has a compact design and gives the best water quality, the same as bottled water.


  • This product has a system that can produce 400 gallons of purified water per day.
  • It has a change filter in just one turn, which is easier and more efficient than most other systems on the market.
  • The product is certified to be lead-free, essential for many homeowners.
  • It has composite filter elements that produce seven stages of filtration.
  • This product has a tankless design and can save space in your kitchen.
  • It has a 1:1 low drain ratio and saves money on your water bill.
  • The product is NSF Certified and reduces TDS, fluoride, limescale, and heavy metals.
  • good value
  • Space-saving
  • Incredibly easy to install and maintain
  • It comes with everything for installation
  • Expensive
  • There’s no remineralization stage

4. iSpring Consumer Reports That It Is The Best Reverse Osmosis System

iSpring, the best water filter, is complete under sink NSF certified filtration system.

High Capacity Reverse Osmosis water filtration for freshwater.

This under-sink-mounted RO water filter removes arsenic, with up to 99% of over 1000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, asbestos, calcium, sodium, and more.

This RO water softener for the sink helps you experience clean, safe, good-tasting filtered water every time you turn on the faucet.

Enjoy crystal clear ice cubes, fresher tea, coffee, better tasting foods, healthier baby formula—three pre-filters to remove large contaminants and protect RO membrane.


  • It has a High Capacity Under Sink 5-Stage Reverse Osmosis drinking filtration system, NSF certified.
  •  Perfect size to fit under a kitchen sink.  
  •  It can eliminate various pollutants down to 0.0001 microns.
  • A fine GAC filter for final polishing to water.
  •  Installation is simple in just a few hours.  
  •  To ensure leak-free installation, put tubing about 1/2-inch deep into quick-fitting connectors, then lock.  
  • A pressurized metal tank of 4 gals with capacities up to 3.2-gallon.
  • High-quality parts ensure the most reliable and long-lasting with low maintenance for a long time. 
  • Clear see-through 1st stage housing of the best under-sink water filter system makes filter inspection a snap.
  • It needs the replacement filter: every 6 months, RO membrane: every 2-3 years, and GAC filter: every 12 months.
  • Capable of quickly filtering 75 gallons a day
  • Small enough to fit in any kitchen
  • 99% removal of pollutants
  • It doesn’t remove microorganisms
  • It doesn’t add in minerals

5. APEC Water Systems ROES-PH75

APEC RO Water Systems is the best under-sink reverse osmosis system, according to consumer reports.

It is an excellent choice for removing up to 99% of all harmful contaminants and chemicals while reducing tap water’s bad taste and unpleasant odors.

This system allows you to make your alkaline, ionized drinking water for improved wellness

It is the ideal solution for those looking to improve their health and even boost weight loss.

The best thing about this Reverse Osmosis filter is that it does not need its dedicated faucet.

You can use the included designer faucet so that you can use it as a standard kitchen faucet.


  • Made in the USA: The system is 100% made and manufactured in the US, ensuring water quality and durability.
  • Its parts are also made in the US, guaranteeing a high-quality product.
  • The system is NSF-certified for both material safety and health, so you can be sure it’ll provide clean water.
  • The KDF85 used in the filtration process is 100% pure and will not wear out in time.
  • Max total dissolved solids: Less than 2000ppm, which provides clean drinking water.
  • 6-Stage System: The RO system has six stages of filtration to remove up to 99% of chemicals.
  • It has 2 years manufacturer warranty to ensure great performance.
  • 75 GPD 6-stage filtration system
  • WQA certified system
  • 2-year manufacturer warranty
  • Pricey

6. Home Master TMAFC-ERP Artesian

Home Master TMAFC-ERP Artesian is an advanced filtration system that can efficiently provide you with clean, great-tasting drinking water.

You get 100% pure, safe, and economical mineral water on tap.

NSF-certified components meet or exceed NSF standards for material safety and performance.

This system has a unique patented remineralization system that adds calcium and magnesium minerals twice during water purification.

It reduces tank degradation by increasing clean water production up to 80% and reducing the water waste ratio.


  • The patented remineralization system adds calcium and magnesium minerals.
  • Reduces tank degradation by up to 80%
  • Increases pure water production up to 50%
  • Nonelectric permeate pump reduces TDS creep and water waste by up to 80%, increasing water quality production.
  • Modular design for easy upgradability and service
  • Filter changes only once per year or 2000 gallons with no wrenches required.

What’s inside the box?

Undersink Reverse Osmosis Water Filter System, drain saddle, pressure test plugs and filters with a wrench, 3/8 in. feed water adapter with shut-off valve, Chrome faucet, mounting screws and washers.”

  • It has a remineralization filter
  • Easy filter changes
  • Reduces wastewater
  • Expensive
  • No housing for filters and water lines

7. Aquasana Reverse Osmosis

Aquasana’s Claryum Reverse Osmosis is a high-quality, affordable water filtration system, as per consumer reports, delivers the highest levels of contaminant reduction.

It removes up to 95% of fluoride and 97% of chlorine, plus 99% of 86 other contaminants including lead, mercury, asbestos, pharmaceuticals, and more.”

The Aquasana RO-CTOP is a complete house reverse osmosis filtration system that replaces your existing faucet and connects directly to your pure water supply.

The RO-CTOP installs easily without tools or plumber assistance.


  • Get the best-filtered water
  • Stop drinking contaminated hard water and start drinking with confidence!
  • Our Aquasana Reverse Osmosis is the best under sink water filter system that removes up to 99% of harmful contaminants, including lead, mercury, asbestos, and pharmaceuticals.
  • Easiest filter replacement
  • There is no need to water lines or disconnect hoses! The housing easily twists off for quick replacement.
  • Plus, our top-grade components include the first set of filters, RO tank, faucet, and all parts required for DIY installation – so you can get started right away!
  • Drink with confidence
  • Our Claryum filtration technology filters 95% of fluoride with 99% of 86 other contaminants from your water.
  • Patented Claryum technology
  • It’s NSF Tested
  • Quick water filtration
  • Long warranty
  • It is space-efficient
  • There are incomplete instructions
  • There’s water leakage
  • It’s not suitable for all sinks

8. Home Master TMAFC Best Reverse Osmosis System according to Consumer Reports

Home Master TMAFC Artesian system is known as one of the best RO systems because it uses innovative technology to solve everyday problems.

NSF Certified components meet or exceed NSF standards for material safety and performance.

Sediment filter prolongs the life of downstream filters, ensuring the highest possible tap water pressure.

The filter needs to change once per year or 2000 gallons with no wrenches required.


  • White finish with chrome faucet
  • The Patented remineralization adds magnesium and calcium twice during the filtration.
  • NSF Certified parts meet or exceed NSF standards for material safety.
  • Made in the USA
  • Fast Flo RO Kit has larger fittings that provide twice the flow as traditional RO filters.
  • The system has a modular design that is easy to upgrade and service.
  • The technology to remineralize
  • 2,000 gallons or one-year filter life
  • 4-gallon pre-pressurized RO water storage tank
  • 5-year limited manufacturer’s warranty
  • Made in the USA
  • It does not include a UV light

9. PureDrop RTW5 Under Sink Reverse Osmosis

Looking for top-quality reverse osmosis systems that can provide you with safe, clean drinking water?

Look beyond the PureDrop RTW5 Under Sink 5-Stage Reverse Osmosis water filter.

It comes with a BPA-free plastic body and has become an excellent option for bottled water.

The system has 5-stage filtration including:

  • Polypropylene sediment filter
  • Granular activated carbon filter
  • Carbon block filter
  • A 0.0001-micron reverse osmosis membrane
  • A post-carbon filter

These filters can reject up to 99% of contaminants, including arsenic, chlorine, lead, heavy metals, etc.


  • A 5-stage filtration process
  • A polypropylene sediment filter, a granular activated carbon filter, and a carbon block filter for achieving maximum filtration
  • Has a certified system Warranty of up to 12 months.
  • Consumer reports recommend the PureDrop RTW5 under sink 5-stage reverse osmosis system.
  • With five stages of filtration and a membrane that rejects up to 99% of contaminants, the PureDrop RTW5 under sink 5-Stage
  • It comes with pre-treatment filters
  • Removes up to 99 percent of TDS
  • Five-stage filtration
  • Smaller capacity than competitors
  • No remineralization

Best Reverse Osmosis System consumer reports Ultimate Buying Guide.

Things to consider before buying


The filters are what will keep your tap water free of contamination.

We advise you to buy a sediment pre-filter and carbon post-filter system.

Keep in mind that some pre-filters will need replacement regularly to make sure the filtered water remains contaminant-free.

If you’re planning on drinking manufactured pure water, consider buying a reverse osmosis water filter with a remineralization option.

It puts back some miners that are removed during the filtration process.

Water Dirt

If you have well hard water, you should purchase a RO system with a filter to remove iron and hydrogen sulfide.

The style of reverse osmosis systems also depends on how dirty your hard water is.

It’s recommended that you purchase a membrane with a higher number of square feet if your water contains lots of dirt.

If you’re purchasing a system to use for camping, buy a lightweight and mobile unit.

Slipstream filters are more compact, but they do not last as long.

Filter Longevity

The filter’s longevity depends on the type of system you purchase.

If you have a tank-style unit, it will need a replacement filter regularly.

In this case, it’s best to purchase a system with an indicator light, and it will warn you when it needs a replacement filter.

It isn’t as crucial for a portable system because it doesn’t have a large tank to clean.

Make sure you know how often the filter needs replacement if you plan on purchasing a system with this feature.


The smaller the micron rating, the better.

Whole House Reverse Osmosis is an effective way to filter out contaminants, but it can’t remove microbial cysts like giardia and cryptosporidium.

Always choose a RO system with at least a .5 micron filter to remove cysts.


Before buying a system, make sure about consumer reports and how much clean water your family needs from reverse osmosis.

If you have a large family, consider purchasing a system with a large tank.

If you live in an area where the tap water supply isn’t safe to drink, make sure you purchase a system with a dedicated faucet.

It allows you to access the pure water when you need it without disturbing the tank.

Water Flow

The filtered water flow is measured in gallons per minute.

Ensure you know how much your family needs before buying a system with this feature.

Some people prefer a high water flow, but it’s better to buy a system with a lower rate.

It can constantly refill a portable tank. If the water flow is too high, the filter may work too fast and the water will go through unfiltered.


If you travel often, it’s essential to purchase a system that is easy to transport.

A portable reverse osmosis unit is lightweight and comes with carrying handles.

The portable tank will be small enough for your car’s or compact storage areas.

If your family spends more time outdoors, this type of system might be the best option.


Why should you use reverse osmosis?

Reverse Osmosis (RO) is a water purification process that uses pressure to force water through a semi-permeable membrane, which removes impurities from the water.

The RO system has been used for many years by commercial and home users.

The main reason why people are turning to RO systems is that they are much more efficient than traditional methods of drinking water treatment.

RO systems can treat up to 90% of the total water volume. This means that if you have a large amount of water flowing into your house daily, you won’t need to install multiple units to get enough clean water.

Another advantage of using an RO system over other filtration systems is that it doesn’t require chemicals to work effectively.

In fact, most of the time, there isn’t even a filter involved. You connect the pipes, turn on, and let the pure water flow.

Is Reverse Osmosis Water Better For You?

The reverse osmosis process removes most contaminants and chemicals from the water.

That makes it a great way to get uncontaminated drinking water.

There are some minerals that the process leaves behind which may make the clean water taste better.

RO system can remove up to 98% of these chemicals.

= Arsenic, Bacteria, Chlorine, Lead, Mercury, Nitrates

Some minerals are removed during this filtration process like:

= Calcium, Magnesium, Potassium

Each of these minerals is necessary for optimal health.

If you purchase a system with a demineralization option, some minerals add back into the water.

How to clean a whole house water filter?

If you have a whole house water filter, it will need regular cleaning.

You can buy a specific cleaning solution from your local hardware store that won’t damage the filter.

You may purchase a black band that fits your faucet for cleaning the filter with water pressure.

Once you’ve finished, turn on the faucet to help rinse away any remaining solution.

When should I use ROS?

RO is the best system to remove contaminants from the water. It includes heavy metals, bacteria, and chemicals.

We can also use it to make saltwater drinkable.

Suppose you live in an area where the water isn’t safe to drink. In that case, it’s best to get a reverse osmosis system that is advised in various consumer reports.

Which membrane should I use?

There are four types of membranes available for home reverse osmosis units.

Each one has different benefits and disadvantages. The following are the most common types of membranes:

– Thin Film Composite

– CTA (Cellulose Triacetate)

– Polyamide

– RO Membrane

The most popular membrane is the thin film composite.

Before purchasing a reverse osmosis system, review the benefits of each type of membrane.

It will help you find the best option for your household needs.


Reverse osmosis is a great way to get safe drinking water.

It’s essential to do research before purchasing the best reverse osmosis system as per consumer reports, so you know which option is best for your family.

Each unit has different features, but the most important ones are the size of the tank and the type of membrane used.

Make sure you understand your household needs before investing in any water system.

I hope you get some valuable information from this post, if you want to improve something please let me know.

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