Best reverse osmosis system and ratings of 2017

There are many types of reverse osmosis systems available to purchase for your home. The following is a comparison of 10 different RO systems available for purchase for comparison. Evaluating these RO systems will help a buyer determine which system is appropriate to buy.


Top 10 Best reverse osmosis system

  1. APEC – Top Tier, Ultra Safe, Premium 5-Stage Reverse Osmosis Drinking Water Filter System

This RO system provides high-quality, clean, filtered drinking water for cooking and making coffee, tea, and ice. It has the only technology to remove 99% of contaminants, including arsenic, barium, cadmium, chromium, fluoride, copper, radium (226/228), and over 1000 other items unsafe in drinking water.

This system was built based on APEC’s 17 years of experience in RO design and production. It treats all types of water at variable pressures and pH extremes, including tap water, well water, hard and soft water. The 5-stage system uses sediment removal, carbon block and coconut shell refining carbon filters to remove chemicals, residual tastes, odors, cloudiness and colors, while the High Rejection TFC RO membrane removes a wide variety of contaminants.

  1. iSpring RCC7 75GPD 5-Stage Reverse Osmosis Water Filter System with Brushed Nickel Faucet and New Upgrades

This 5-Stage filtration process system uses incorporates polypropylene sediment, Granular Active Carbon, Carbon Block, and Reverse Osmosis technologies to provide crisp-tasting, bottled-quality water at 2 cents per bottle. Using this system, water passes through a 5-micron sediment filter that traps particulate matter such as dirt, rust, and silt. Then, a 5-micron GAC filter reduces chlorine taste and odor, as well as mineral oil, BTEX, Poly aromatic hydrocarbons (PACs), phenol, and halogenated substance. The third stage works as a denser carbon block filter removes any residual color, taste and odor, as well as difficult-to-remove chemicals such as chloramines. The system’s fourth stage of filtration presses the water through the reverse osmosis membrane. This removes arsenic, lead, perchlorate, chromium, copper, TDS (total dissolved solids), sodium, and a long list of other water contaminants. It also removes parasitic cysts, such as giardia and cryptosporidia. The fifth stage of filtration utilizes a finer GAC filter to perform a final cleansing of the water before it comes out of the faucet

This provides tasty, healthier water at merely one cent per bottle. The RCC7 comes with a thirty-day money back policy and one-year limited manufacturer warranty.

  1. Express Water 5-Stage Home Drinking Reverse Osmosis System PLUS Extra Full Set of 4 Water Filters

This excellent water filtration system features an NSF certified 50 GPD Reverse Osmosis Membrane for superior performance, an NSF certified steel storage tank, and an Automatic Shut-Off Valve. It is solidly constructed and provides noise-free operation. It is easy to install and easy to maintain. It also comes with extra filters so you won’t have to purchase additional filters as quickly as you would with other systems.

  1. APEC Countertop Portable and Installation-Free Reverse Osmosis Water Filter

This light and compact filtration system is portable and extremely easy to use. This system is extremely easy to use. It attaches right to the faucet, not requiring any installation. It provides up to 90 gallons of safe drinking water a day. This system is tailor-made for apartments, condos, motor homes, retirement homes, seniors, students, and travelers.

During the first stage, the micron sediment filter removes dust, particles, and rust, and provides protection for the membrane. The second stage takes place as the activated carbon filter begins to remove contaminants such as chlorine, odors, cloudiness, and colors. This stage also removes VOCs and other chemicals. At the third stage, the RO membrane removes up to 99% of total dissolved soilds (TDS), and contaminants such as arsenic, lead, fluoride, chromium, radium, bacteria, viruses, as well as others. During the fourth and final stage, the coconut shell activated carbon filter removes the remaining residual tastes.

  1. iSpring RCC7AK – Upgraded Legendary 75GPD 6-Stage Reverse Osmosis Water Filter System with Alkaline pH+ Mineral Stage and Brushed Nickel Faucet

The iSpring RO system #RCC7 is now available with an alkaline upgrade (Corosex with calcite). This system restores the calcium and magnesium minerals removed during RO. This system features a six-stage filtration process, and a 75GPD RO membrane. The membrane uses polypropylene sediment, granular active carbon, carbon block, reverse osmosis, and Corosex with calcite.

The system provides clean drinking water at 2 cents a bottle. It’s made with NSF certified WET parts by an ISO 9000:2000 Quality Management Systems factory. This system’s membrane square footage delivers water that fills up the tank faster and lasts longer. It lasts up to 1.5 times than a 50GPD system.

  1. Home Master TMAFC Artesian Full Contact Reverse Osmosis Under Counter Water Filtration System

The goal of this RO system is to offer an improved alternative to traditional RO systems. Home Master doubles the flow rate by using large fittings and tubes. The patented remineralization system pH balances the water once on the way to the storage tank, and for a second time before it reaches the faucet. During this process, calcium and magnesium minerals are added to alkalize the water and give it a better taste.

This system provides Mineral Water on Tap by cleaning the water, removing up to 98 percent of chlorine, chemicals, heavy metals, dissolved solids, pharmaceuticals and other contaminants. RO and sediment and carbon filtration is sued to achieve this purification. Then, water travels through the patented remineralization system twice to add calcium and magnesium minerals. The system uses a 7-stage cleaning process running through a 50 GPD membrane.

  1. APEC Water RO-90 Certified Ultra Safe, High-Flow 90 GPD Reverse Osmosis Drinking Water Filter System

The RO-90 system is one of the highest rated RO systems on the market. It has received the WQA Gold Seal. This ranking certifies that this system has among the highest contaminant removal rates and produces some of the cleanest water possible. This RO system purifies water at a rate twice as fast than the average RO system. The system also removes a long list of contaminants, including chlorine, taste, odor, fluoride, arsenic, lead, chromium and many others.

The system uses premium-grade filter cartridges lasting twice as long as normal filters, and offer greatly enhanced contamination control. It possesses a five stage filtration program. A stringent QC process ensures that each system operates at peak efficiency, is completely free from water leaks, bursts and noises. It removes up to 99% of all contaminants. The system is made easy to install by the inclusion of quick connect fittings. The RO-90 comes with a 30-day money back guarantee and a one-year limited warranty.

  1. APEC Water Systems ROES-PH75 Top Tier Ultra Safe pH Alkaline Calcium Mineral Reverse Osmosis Drinking Water System

This 6-stage 75 GPD RO system adds calcium to enhance the water taste for people who prefer mineral water. The ROES-PH75 provides tasty, healthy water for drinking and cooking. The system provides 6 stages of water filtration. During the first stage, the polypropylene filter removes dust, particles, and rust. In the 2rd and 3rd Stages, the Carbon Block removes unpleasant chlorine, tastes, odors, cloudiness and colors, as well as VOCs and other chemicals. The 4th Stage takes place as the RO membrane removes up to 99% of solids and contaminants. In the 5th Stage, a Coconut Shell Carbon filter removes residual taste. In the 6th and final Stage, the Calcite Acidic Water Neutralizer adds calcium carbonate to increase alkalinity.

  1. Express Water 5 Stage Home Drinking Reverse Osmosis System 100 GPD Modern Chrome Faucet – 4 Extra Filters

This RO system features a NSF certified 100 GPD membrane. It comes with an NSF certified steel storage tank and 4 extra filters. Also includes an automatic Shut-Off Valve and a chrome modern faucet. Solidly constructed with noise free operation. Used with easy installation and maintenance.

During the first stage, the Polypropylene Sediment Filter: Is the first filter removes large and fine particles, such as sand, dirt, silt, and rust particles. This first stage helps to improve the performance of the other filters. The second stages commence as the Granulated Activated Carbon (GAC) filters remove chlorine, odors and tastes of many organic compounds. The third stage finds the five Micron Carbon Filters filtrates suspended particles and improves water taste. At the fourth stage, the 50 Gallon Per Day Thin Film Membrane provides the main component of any Reverse Osmosis unit. Made with thin film flat sheet, this membrane provides up to a 98% reduction rate of bacteria. The fifth and final stage has the Inline Granular Carbon Filter, also known as polishing filters, stabilize the water taste, while removing any bad tastes and odors.

  1. Watts Premier RO-Pure 531411 4-Stage Reverse Osmosis System

The Watts RO-Pure water filtration system protects water drinkers from impurities and contaminants. The RO-Pure removes unhealthy solids, including metals, salts, and minerals as well as cysts, bacteria, and viruses.

The High-production membrane filters contaminants to an extremely low amount. The included faucet is equipped with an electronic monitor to notify users when filters need changing. The high-volume RO storage tank provides continuous water flow.

The 5-micron Sediment Pre-Filter traps particulates like dirt, rust and silt that affect water taste and appearance. The Carbon Block Pre-Filter reduces chloramines, chlorine as well as unpleasant taste and odors. The RO Membrane removes up to 96 percent of dissolved solids and up to 99.9 percent of cysts, bacteria, and viruses. This 50-gallon per day semi permeable membrane will effectively reduce total dissolved solids (TDS), sodium and contaminants, such as lead, arsenic, perchlorate, chromium, copper and radium. It also removes over 99 percent of cysts such as Giardia and Cryptosporidium. The membrane will also reduce nitrates and nitrites.

The easy changing filters are replaced by a simple press of a button. The Auto-shutoff valves built into the filter heads means that the water supply can stay on during installation. The filters snap into place for super easy installation. The system reduces or removes contaminants such as Arsenic (V), Radium 226/228, Hexavalent Chromium,Trivalent Chromium, Copper, Lead, Fluoride, Cadmium, Barium, Selenium, TDS, Turbidity, Perchlorate, Cysts, and Nitrates/Nitrites.


With the increasing lack of water purity becoming a bigger issue every day, concerns about drinking water have reached epic proportions. The increase of First World industrialization, combined with the pressing need to improve potable water in Third World countries, has prompted science to work diligently to develop purification systems to remove harmful contaminants.

One of the most popular means of water purification is reverse osmosis. Reverse Osmosis (also known as RO), is a method of removing large particles from drinking water. RO works by filtering water through a membrane. The membrane contains holes called pores that allow the purest part of water through, while trapping the larger molecules in a separate side. The trapped molecules can be anything from bacteria, salt, fluoride, and other contaminants.

Reverse osmosis is part of a process called hyperfiltration. Hyperfiltration works by decreasing particles to the molecular level. This process leads to the development of clean water. Reverse osmosis filters removes salts and other water pollutants, which produces pure water.

This is the general process by which reverse osmosis works. The performance of ROs varies depending on a number of variables. These variables include water pressure, the kind of filters and membranes used in the RO, water temperature, and the presence and/or level of total dissolved solids (TDS).

RO systems operate as tap water passes through a membrane and filter. This can be a single process or a series of membranes and filters. The membrane allows only water to pass through, but contaminants and impurities are left behind and emptied. Then, pure water travels to a holding tank that is accessible to a faucet.

Which RO System is Best?

Determining the best RO system to purchase for home use is dependent on several factors. These factors will vary from person to person and family to family.


Before the days of Consumer Reports and websites like Amazon that provide customer reviews, it was very difficult to determine the true value of a product. Companies spend billions of dollars on advertising and marketing campaigns to convince consumers that their product is the best and the most desirable of its kind on the market.

However, in 2015, an informed consumer can conduct research using the internet, using it to read product reviews, Consumer Reports and other unbiased rating organizations. This research can help buyers determine the difference between a product that promises great results and one that delivers those results.

Of course, the quality of an RO system is subjective. While everyone will agree that a 5-star or 4-star review is more impressive than a 3-star or less review, the needs of consumers are different. While one buyer of an RO system might be concerned about lead in their water, another may be more concerned about sodium or fluoride.

An informed RO consumer needs to review what contaminants a system specializes in removing and find a products that services their particular needs.


As always, the cost of an item will be a considerable factor in purchasing an RO system. Prices of the more reputable systems range from $140 to $300.

When it comes to something as important as protecting the water you drink, you might be willing to pay a lot more than you would for other purchases. But budgets and financial considerations may still come into play. Therefore,

  • Decide in advance what you can afford
  • Make a list of systems that fall within your budget
  • Narrow the list of remaining systems based on your needs and preferences

Type of System

There are a variety of RO systems available on the market. Some attach directly to faucets. Others attach under sinks and counters, while still others are countertop models.

The best system for you may depend on several factors:

  • Your living quarters – your preferred system may vary based on whether you live in a house or apartment.
  • The area you live in – the city or state you live in may determine the type or level of contaminants in the area, and will influence what system you will need
  • The level of quality you desire in an RO system
  • The price of the RO system

Other Deciding Factors

When choosing an RO unit, ask yourself the following questions:

  • How many filtration stages do I need?
  • How many gallons per day (GPD) of clean water do I need?
  • Is the type of membrane important for my needs?
  • What do contaminants do I want to remove from my water?
  • Does my tap water contain chlorine?

Filtration Stages
RO units feature several stages of filtration and contaminant removal, generally between 2 and 4.

  • 2-stage RO units – These units are light and compact, easy to store, and move around. They contain a pre-filter and the membrane. These systems are good when you are dealing with a lack of space. 2-stage units are more affordable than other RO systems.
  • 3-stage RO units – Larger units that use carbon or sediment pre-filters in addition to the membranes. These units are higher in quality than 2-stage units, they are designed for everyday use, and are more durable than the 2-step units.
  • 4-stage RO units – These units include the deionization process. The deionization unit removes any contaminants that have not already been removed. This process filters to 99% or even greater, providing the maximum amount of decontamination.

Benefits and Drawbacks of RO Systems

As with anything in life, there are pluses and minuses to using RO systems. Here’s a brief overview

Benefits of RO Systems

  • They provide pure drinking water by desalination and the removal of dangerous contaminants
  • The improvement or removal of odors and bad tastes
  • They requires little maintenance, which mostly consists of replacing water filters
  • They are easy to use, providing clean drinking water without much effort or trouble
  • Depending the cost and effectiveness, they provide an affordable way to achieve clean drinking water

Drawbacks of RO Systems

  • Some RO systems are not able to get rid of dangerous chemicals like chlorine, pesticides and herbicides. This is because these contaminants have molecules that are smaller than water. The only RO systems that are capable of removing these dangerous contaminants are systems that are equipped with carbon filters.
  • Even the best RO systems are wasteful of clean drinking water. Most Reverse Osmosis systems waste 2-3 gallons of water for every gallon of clean drinking water that is produced.

Final RO Advice

RO systems need regular maintenance to operate effectively. Read and follow the instructions in the operating manual that comes with your RO system to make sure that you are operating the system properly and you are following the manufacturer’s instructions. You should always replace filter cartridges, membranes and other items as instructed by the manufacturer’s specifications.

While considering the quality of the RO’s filter system, it is crucial to investigate the manufacturer to determine their ability to supply future equipment. The importance of purchasing a reliable RO system, and the desire to keep it in good working order for many years means that the manufacturer must provide excellent support and part replacement. Technical support and customer service are a must for major purchases. Another important factor to consider is the number of satisfied customer reviews for RO systems. Obviously, the four and five star reviewed systems are to be preferred over other lesser rated systems.

One of the reasons it is prudent to investigate manufacturers and suppliers is because some of them make promises that they cannot keep. One warning sign is the offer of long warranties of 5 to 10 years. The danger of purchasing a system with long warranties is that they are often referred to as conditional. This means that proof of maintenance will need to be provided for the system to be covered under the warranty, and the warranty may or may not cover your particular problem or parts. Be careful and read the warranty very carefully.

Many factors go into the successful purchase of a Reverse Osmosis system. Research carefully, compare thoroughly, and buy according to what you can afford and what system is best for you.



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