Water Filters

14 Best Reverse Osmosis (RO) Systems 2020 -Top Picks Reviews

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You must be looking for the best Reverse Osmosis (RO) system to provide safe and healthy water to your family. And we probably have the answer!

Lets in case you don’t know:

Why Choose RO Systems? Reverse Osmosis systems are the most recognized and trustworthy of all. These systems are termed to be the most effective in the reduction of the most harmful chemicals and contaminants such as:

  • Lead
  • Arsenic
  • Nitrates
  • Chromium
  • Fluoride
  • Phosphate
  • Radium
  • Bacteria
  • Viruses
  • And More

As there are many companies providing different types of RO Systems, its mostly hard for customers to choose the best one for them. The countless number of RO filtration systems available in the market can make the choice difficult for you. We are here with a detailed and informative review of the best Reverse Osmosis systems.

With the help of this review article, you can take the decision easily and with more confidence. A buying guide at the end of the article is compiled for your convenience for a better understanding of the selection process.

Quick Comparison Table – Editor’s Choice for the Best RO Systems

14 Best Reverse Osmosis Systems In Our View

After thorough and extensive research-based testing, we have carefully selected 14 RO systems for our review. We have made the selection after assessing everything that you must be looking in a filtration system.

Pros and cons are mentioned under every product so that you are fully aware of what you are investing in.

1. APEC Water Systems ROES-PH75 Essence Series

Sale
APEC Water Systems ROES-PH75 Essence Series - Key Features
  • Supreme quality - designed, engineered and assembled in USA to guarantee water safety &...
  • This 75 GPD 6-stage system ROES-PH75 is guaranteed to remove up to 99% of contaminants...

Specifications

Certified by WQA | 2-year extended warranty | 6-stage water filtration system | system capacity: 75 gallons per day | tank capacity: 4 gallons | removes up to 99% of contaminants such as chlorine, taste, odor, VOCs, as well as toxic fluoride, arsenic, lead, nitrates, heavy metals and 1000+ contaminants. Max Total Dissolved Solids | water pressure: 40-85 psi | 100% lead-free | | JG food-grade tubing
Pros
  • High-quality materialsnNo extra tools needed for installationnQuick connect fittingsnAdds calcium minerals to improve alkalinitynHigh flow ratenHeavy-duty long-lasting cartridgenLeak-free and clog-freenWater tastes amazingnComes with a faucet and storage tank
Cons
  • Wastes 3 gallons to filter per gallon

Packing of parts could be better APEC Water Systems ROES-PH75 Essence Series Top Tier Alkaline Mineral pH+ 75 GPD 6- Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System is our top pick.

The system has an unbelievable customer rating. The system has a satisfaction rate of 87% and people have loved its superior filtration.

The 6-stage RO filtration system comes a high capacity pre-set filters, TFC membrane post filter, Celtic acidic water neutralizer, and water storage tank to remove 99% of contaminants such as chlorine, taste, odor, VOCs, as well as toxic fluoride, arsenic, lead, nitrates, heavy metals and 1000+ contaminants.

It also removes the maximum amount of Total Dissolved Solids (TDS). The filtration system is designed for easy usage and the convenience of installation. With little technical knowledge and by watching some video tutorials, one can easily set this thing up without any extra tools required.

Not only that, but the system also uses high-grade calcium minerals for the increased alkalinity and pH level of your drinking water. The filter is fully tested and certified by WQA standards that make it the number 1 RO system.

2. APEC Water Systems RO-90 Ultimate Series Top Tier Supreme Certified

APEC Water Systems RO-90 Ultimate Series - Key Features
  • Enjoy unlimited ultra-fresh, clean, great tasting water right at home. Save money, time...
  • Designed, engineered and assembled in USA, RO-90 is the most durable system in the...

Specifications

Certified by WQA | remove up to 99% of contaminants including arsenic, chlorine, lead,
fluoride, heavy metals, virus and 1000+ contaminants |Filtration capacity: 90 gallons per day | JG food grade tubing | 2-years manufacturer warranty | lead-free design | 12 months filter life
Pros
  • Comes with a chrome faucetnTested and certifiednAffordablenValue of moneynUltra-clean waternDurable and long-lastingnIncreased peace of mindnEasy to install and maintainnLeak-freenRemoves up to 2x more contaminants
Cons
  • The user manual is not complete

Another great option of RO system by APEC is the APEC Water Systems RO-90 Ultimate Series Top Tier Supreme Certified High Output 90 GPD Ultra Safe Reverse Osmosis Drinking Water Filter System.

The system has almost the same ratings as its former filter. Get ready to experience the tastiest water you have ever drunk. With this filtration system in your home, you can brew coffee that is frothier, tea that tastes amazing, and baby food that is full of all the essential nutrients.

This RO filter is tested and certified against the WQA gold seal safety standards for the removal of 2X more contaminants from your drinking water. It can remove 99% of contaminants including arsenic, chlorine, lead, fluoride, heavy metals, virus and 1000+
contaminants.

It comes with a premium quality chrome faucet, a storage tank and a complete installation kit that makes its set up a fun DIY activity. The system is reliable and trustworthy based on its detailed stage by stage filtration.

There is a super-capacity pre-set sediment filter that removes dust, dirt, and debris. The 2 carbon block filters remove chlorine, cloudiness, bad taste, odor, and other residential chemicals.

The Tier Filmtec RO membrane removes 99% of the contaminants after which the refining coconut filter removes all the residues to ensure purification.

3. APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System

APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System - Key Features
  • High quality, designed, engineered and assembled in the USA; System built with US MADE...
  • Guaranteed to remove chemicals (i.e. chlorine), taste and odors. NOT designed for TDS...

Specifications

1-year satisfaction guarantee | WQA and FDA certified | JG food grade tubing | Lead-free chrome faucet | removes sediments, heavy metals, herbicides, pesticides, chemicals, chlorine, bad taste, odor, cloudiness, and VOCs | 12 months filter life | 3-stage filtration | water pressure: 20-85psi
Pros
  • High-quality materialnAssembled and manufactured in the USAnLong-lasting filtersnTreats both tap and well waternComes with lifetime supportnEasy installationnKeeps essential mineralsnEasy maintenancenValue of moneynNo water wastage
Cons
  • Not designed for TDS removalnNot recommended for filtering hot water

APEC WFS-1000 is a 3-stage under sink water filtration system that outshines other filters with its dynamic and exceptional qualities. Whether you are looking for a high-capacity filter or a budget-saving filtration system, this one fits all your requirements.

Due to its unmatched capabilities of filtering both tap and well water, people are more drawn towards purchasing it. It has a faster flow rate than its competitors and the filter lasts for 12 months before a replacement.

With the eco-friendly feature, no water is wasted during the filtration process like other RO filters. The filter removes different types of chemicals, contaminants, VOCs, and chlorine by keeping all the essential minerals in the water.

The first stage is a polypropylene sediment filter that works to filter out all the sediments, rust, dust, debris, and other suspended particles from the water. The second and third stage filters carry premium extruded carbon blocks.

The 10-inch carbon blocks remove chlorine, VOCs, and chemicals along with increasing the filter’s performance. The only concern that you may have is that the filter is not so effective in removing chloramine and TDS.

Installing and maintaining the system is pretty easy. All that you need to fix this system is included in the box. You will never have any complaint about its sturdiness as it comes certified by WQA and FDA. You will also get a 1-year satisfaction guarantee.

4. APEC Top Tier Supreme Certified Reverse Osmosis Drinking Water Filter System (ULTIMATE RO-PH90)

APEC Top Tier Supreme Certified Reverse Osmosis Drinking Water Filter System (ULTIMATE RO-PH90) - Key Features
  • SUPREME QUALITY: Built with super long-lasting 100% US MADE filters, RO-PH90 is the most...
  • WQA Certified: RO-PH90 is tested and certified by WQA to remove up to 99% of contaminants...

Specifications

Calcium carbonate for enhanced pH | certified by WQA | Removes up to 99% of contaminants such as chlorine, taste, odor, VOCs, as well as toxic fluoride, arsenic, lead, nitrates, heavy metals and 1000+ contaminants | 3-stage filtration | JG quick connect fittings | 2-year manufacturer warranty | removes 99% of TDS | 90 gallons per day | 12 months filter life | 60psi water pressure | tank storage capacity: 4 gallons | 6-stage filtration
Pros
  • 100% metal designnEasy installationnClear and purified water in every glassnComes with lifetime supportnLeak-freenNoise-freenGreat filtration powernHigh filtration rate
Cons
  • A bit expensivenTank valve is made of plastic

If you are searching for supreme quality filtration that provides you with 100% satisfaction and peace of mind, bring home The APEC Ultimate RO-PH90 water filtration system.

The system has a high-quality and high-performance filter that can easily last up to a year. Because this one is a 6-stage filter system, each filter carries a different lifespan. The first 3 stage filters can last up to 1 year, stage 2 RO filter lasts up to 3 to 5 years, while stage 6 filter needs to be replaced every 6-12 months.

The system is certified by WQA gold seal and comes with an easy to understand instruction manual, everything you need comes packed within the box. Just read the manual carefully and watch some video tutorials if needed.

If you do not have any DIY experience, you can call a plumber. The filtration process of the APEC RO-PH90 is exceptionally detailed. The filter has a high filtration capacity of 90 gallons per day and a filter capacity of 4 gallons.

It removes 99% of contaminants so that you will get crystal clear water every time. The filter uses calcium carbonate minerals for increased alkalinity and can raise the pH level to 8-9.

The first stage is a 0.5-micron sediment filter that removes the smallest particles of dirt, dust, rust, debris, and other sediments. The filter is made up of high-quality polypropylene. Stage 2 and 3 are extruded carbon block filters.

They remove chlorine, bad taste, odors, and other harmful chemicals. Stage 4 filter in Filmtec high rejection TFC RO membrane that is designed to remove 99% of dissolved solids such as fluoride, TDS, and other particulates at 0.0001 microns.

The stage 5 coconut shell refining shell cleans the storage tank. 6 th stage filter is Calcite Acidic Water Neutralize that increases the alkalinity of the acidic RO water by adding calcium.

5. iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System

iSpring RCC7AK 6-Stage Superb Taste High Capacity - Key Features
  • 6-Stage Alkaline Remineralization Layered Filtration: Exclusively designed to restore the...
  • BENEFITS: The iSpring RCC7AK water softener includes an additional sixth stage - an...

Specifications

5-stage RO water filter with additional water softening stage | pH 7.0 | removes contaminants down to 0.0001 microns | removes over 1,000 different types of contaminants, including arsenic, asbestos, chlorine, fluoride, lead, mercury, sodium and more. Water Pressure: 45 PSI – 70 psi | Operating water temperature range: 40 – 100 °F | Maximum TDS: 750 ppm | 1-year manufacturer warranty | 1-year satisfaction guarantee | 75 GPD | 4-gallon storage tank
Pros
  • Value of moneynLong-lasting filtersnEasy on the budgetnPremium quality layered filtrationnRestores the mineral balance of waternEasy DIY installationnUnparalleled technical supportnSatisfaction and peace of mindnBetter tasting clear waternEasy maintenancenAdds safe minerals in the water
Cons
  • 3 gallons of water wasted to filter one gallonnDoesn’t have a UV light to kill bacteria

Next on our list of the best RO filtration system is the iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System. The multi-layered filtration system has an exceptional customer rating with 84% satisfaction rate.

The main reason for its popularity is that restores the mineral balance of the water by adding essential minerals and increasing the alkalinity to the slightly acidic reverse osmosis water.

Water tastes great and fresh when it comes from the RCC7AK filter. 75 gallons per day provides extra-large protection to large families. The filtration capacity of the tank is 4 gallons where three gallons of water is wasted to filter 1 gallon.

The system is noise- free, leak-free, and low maintenance. It comes with a 1-year satisfaction guarantee and 1-yearmanufacturer warranty for enhanced credibility. The system uses a 5-stage filtration procedure with an added sixth stage that treats hard water.

The first stage is a high-capacity 5-micron sediment filter. It removes dust, dirt, sediments, rust, and sand. The 2 nd and 3 rd stage features a 3.5-micron activation carbon block for the removal of chlorine, bad taste, and odor.

Stage 4 is 0.0001 micron RO membrane that traps and removes 95% of TDS after which the water is channeled to the storage tank in the post-carbon filter stage.

The 6 th stage is the alkaline remineralization filter that adds healthy minerals such as calcium, magnesium, sodium, potassium, and increases the pH level and treating the hardness level.

6. iSpring RCC7AK-UV 75GPD 7-Stage Under Sink Reverse Osmosis RO Drinking Water Filtration System

iSpring RCC7AK-UV 75GPD 7-Stage Under Sink Reverse Osmosis RO Drinking Water Filtration System - Key Features
  • This Reverse Osmosis under sink mounted water filter and Point-of-use water softener...
  • With its advanced 11 watt UV stage, the RCC7AK-UV is a suitable option to filtering well...

Specifications

75 gallons per day | 7-stage filtration | 11 watts UV lamp | removes up to 99% of over 1,000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, and sodium and more | Feed Water pH – 3.0 -11.0. Feed Water Pressure – 45-70 psi. Feed Water Temperature- 40-100 F (4 – 38 C) | certified by NSF/ANSI against standard 58 | 3.2- gallon pressurized tank with 2.5 gallons holding capacity | 3 years manufacturer warranty | 1- year satisfaction guarantee
Pros
  • Top-notch performancenHighly recommendednWater tastes better than bottled waternLead-free brushed nickel faucetnFinest micron usednLive phone supportnValue of moneynEasy DIY installation and maintenancenWater leakage alarm included
Cons
  • 3 gallons water for 1 gallon filtered waternConfusing installation manual

iSpring is an incredible company that never lets its customers down. With a range of RO filtration systems, the company has proved its credibility and worth.

You can easily trust a single company and get a variety of filter options. iSpring RCC7AK-UV 75GPD 7-Stage Under Sink Reverse Osmosis RO Drinking Water Filtration System is another great filter if you also need a UV light lamp to kill bacteria and other harmful pollutants.

Some people may have concerns about the water wastage per gallon of the iSpring filter systems. However, there are some filters where 4 gallons of water are wasted per gallon.

The average water wastage is 3 gallons, but it can vary according to how your water pressure balances with the pressure and temperature of the filter. As for the installation, anyone with little technical knowledge and DIY skills can easily set up this system.

Although the installation manual seems misleading, you get all that you need for the process including housings, filters, parts and tubings, faucet and mounting bracket. The 7 stage filtration process is designed to get rid of 1000+ contaminants more than 98%.

The first 3 stages are pre-sediment filter, carbon KDF filter, and carbon block filter that removes all the large particulates, dirt, dust, and debris before it enters the stage 4 RO membrane filter.

In this stage, contaminants are reduced to 0.0001 microns. The 5 th stage is a fine GAC filter designed for final water polishing. In the 6 th stage, a powerful UV light sterilizes and cleans the water from all bacteria and viruses.

The 7 th stage is the final stage the restores the essential minerals removed in the 4 th stage. It also adds to the alkalinity level of water.

7. iSpring RCC7 High Capacity Under Sink 5-Stage Reverse Osmosis Drinking Filtration System

Sale
iSpring RCC7 High Capacity Under Sink 5-Stage Reverse Osmosis Drinking Filtration System - Key Features
  • This system is certified to NSF/ANSI 58. High Capacity Reverse Osmosis water filtration...
  • Experience clean, safe, good-tasting water every time you turn on the faucet. Enjoy...

Specifications

Removes up to 99% of over 1, 000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more | Filter life: 6-12 months | 5- stage RO filter | 75 gallons per day | micron layered protection | water leak detection
Pros
  • High-capacitynAffordablenValue of moneynBetter tasting water every timenEasy DIY installationnLeak-freenPremium-quality componentsnEuropean design faucetnSee-through housingnExpert technical support
Cons
  • No UV light lampnDoes not remineralize water

For a small to medium-sized family that loves to save money, iSpring RCC7 High Capacity Under Sink 5-Stage Reverse Osmosis Drinking Filtration System is the right choice.

The system is popular among its users because of its budget-friendly price and value of money. The RO filter does exactly what it is designed to do. Bring this one home, and you will never regret spending on a filter.

iSpring RCC7 is designed to provide you with the peace of mind that your family is drinking safe and healthy water. You can use the water for drinking, brewing coffee, making tea, preparing baby food, and daily cooking to enjoy better health.

The system has 5 filters that are easy to install and replace. You have to change the filters after every 6-12 months depending on the usage. Every stage of the system is designed to remove the concerned contaminants and particles with perfection.

The first stage is a post sediment filter that removes all the dust, dirt, rust, sediments, and large particulates from the water. The 2 nd and 3 rd filter are carbon KDF and carbon CTO block filters that removes chlorine, chloramine, chemicals, bad taste, and odors from the water.

After that, the water is passed through the 4 th stage RO membrane for the removal of all the contaminants down to 0.0001 microns. The 5 th stage is a GAC filter where the final polishing of the water quality is done.

8. iSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System

- Key Features
  • QUALITY 7-STAGE FILTRATION: This Reverse Osmosis (RO) water filtration system removes up...
  • BOOSTER PUMP: Reverse Osmosis produces filtered drinking water by pressurizing water...

Specifications

7-stage filtration | 100 gallons per day | flow sensor | Philip UV light sensor | removes up to 99% of over 1,000 harmful contaminants like chlorine, fluoride, lead (removes up to 98%), arsenic, asbestos, calcium, sodium, and more | Incoming Water Pressure: 30 PSI – 70 PSI. Operating water temperature range: 40 – 100 F. Maximum TDS: 750 ppm | 1-year limited warranty
Pros
  • Perfect for large familiesnPower-savingnCost-efficientnValue of moneynRust-free brushed nickel faucetnDIY installationnLow maintenancenLong filter lifenLeak-freenExceptional filtration performance
Cons
  • Does not remineralizenNeeds electricity to operatenExpensive

iSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System comes with a booster pump that is not included in any other water flirtation system by the company.

This is one of the major features that makes this one different and unsurpassed. The booster pump is used to increase the water pressure of the system from below 40psi to 80psi or more.

This feature enhances the performance of the filter and makes its impact long-lasting. The filter is perfect for larger families, and you can also use it for commercial purpose as it provides you with 100-gallon water per day.

The filter carries 5 filters to remove up to 1000 contaminants down to 99%. Every filter has a different lifespan that keeps you relaxed and gives you the peace of mind you were looking for. 3 pre-sediment filters eliminate all the sediments, dirt, dust, rust, and chlorine.

The 4 th stage is reverse osmosis membrane for the removal of contaminants down to 0.0001 microns including TDS. The fifth and final stage of GAC filters is used to polish and refine the water quality before it reaches your glass.

Smart UV light detects and removes any bacteria or virus present in the water The pre-filters require replacement every 6-12 months. The RO membrane can last up to 2 to 3 years before a replacement.

The GAC filter needs replacement once a year while UV light lamp can go for 1 to 3 years. The filter is backed by a 1-year limited warranty that ensures its durability.

9. Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water Filter System

Home Master TMAFC-ERP Artesian Full Contact - Key Features
  • A better RO system -- Home Master Artesian Full Contact's innovative design solves the...
  • Highly pure water -- its seven stages of filtration and enhancement remove up to 98...

Specifications

1-year filter life | 2000 gallon filter capacity | 75 gallons per day | non-electric permeate pump | TFC membrane | 5-year limited warranty | pre-pressurized water storage tank with 4-gallon capacity | Removes up to 98% of dissolved solids, chemicals & metals | Full Contact Technology for remineralization
Pros
  • Reasonable tastenGreat water tastenEasy to change filtersnEasy installationnReliable and efficientnFast flow ratenAll-in-one designnComes with a chrome faucetn2x long filter lifenAdvanced mechanismnValue of money
Cons
  • Does not treat well waternDoes not include UV light

If you are looking for a quality filter that will make your water taste better along with better output capacity, choose Home Master TMAFC-ERP Artesian Full Contact Undersink Reverse Osmosis Water Filter System.

The system may sound a bit pricey than the regular filtration systems of the same size, but exceptions are always there.

This filter is a better reverse osmosis system as it uses TFC membrane and RO membrane to filter out several contaminants along with 98% of chemicals, metals, and other dissolved solids.

The performance of the filter is exceptional because it creates the perfect balance of alkalinity. After the water passes through the RO membrane, it becomes alkalinity. Home Master TMAFC- ERP has a final remineralization stage where the pH level of water is balanced.

As for the installation, you don’t need to spend an extra penny on hiring a plumber. The system comes with simple DIY installation and lives support available. The user manual is simple to understand, and it takes not more than an hour to set it up.

The modular system design of this filter makes it easy to use and change. You get a filtration capacity of 2000 gallons at a fast flow rate without wasting more water. The filter needs to be changed only once a year. Another great thing is that it is backed by a 5-year limited warranty.

10. Express Water RO5DX Reverse Osmosis Filtration

Express Water RO5DX Reverse Osmosis Filtration - Key Features
  • Reverse Osmosis Water Filter: Experience what water should taste like with the Express...
  • Water Purification System: Drink the healthiest water on Earth. All our water filters are...

Specifications

Removes up to 99. 99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, Bacteria, and more | UV Water Filter, Alkaline Water Filter, Deionization Water Filter compatible | 5-stage water filtration | 0.8 GPM | Double sealed filters | leak stop valve | certified against NSF standard 58 | cycle resistance | 40-80 PSI water pressure | 4-gallon storage tank capacity |
Pros
  • Best for a tight budgetnFeature-packednSmart technology filtrationnGreat tasting healthy waternValue of moneynEasy replacementnEasy installationnLong-lasting durable filtersnExceptional power in contaminants removalnFully upgradeable and customizable
Cons
  • Maintenance is somewhat costly

It will not be wrong to say that the Express Water RO5DX Reverse Osmosis Filtration system is the most feature-packed filter in this list of best RO systems.

If you start counting the features of the system, you will be appalled at how much you get at such a low price. The filter is designed with a 5-stage filtration technology that works efficiently to remove a lot of contaminants bacteria and viruses.

You can get the healthiest water that will be free from Pesticides, Herbicides, Viruses, Pyrogens, Giardia, Lead, Chromium, Cadmium, Heavy Metals, Rust, Sand, Dirt, Dust, Chlorine, Fluoride, Hydrocarbons, Sulfate, Phosphate, Arsenic, Cyanide, Turbidity, Hardness, Total Dissolved Solids (TDS), and more.

The first stage is a sediment filter that removes dirt, dust, pollutants, sediments and other particulates. The 2 nd and 3 rd stages feature carbon block and granular carbon filters for the reduction of chlorine, bad taste, odors, and VOCs.

The 4 th stage is the RO membrane that removes the most harmful and difficult to remove contaminants such as lead, arsenic, TDS, radium, and fluoride.

The 5 th stage post activated carbon filter does the final polishing of the water by ensuring the filtration. Any particle left behind will be removed in this stage.

11. Express Water Reverse Osmosis Alkaline Water Filtration System – 10 Stage RO Water Filter

Express Water Reverse Osmosis Alkaline Water Filtration System - Key Features
  • Reverse Osmosis Water Filter: Experience what water should taste like with the Express...
  • Alkaline Water Filter: Express Water’s Alkaline Water Filter with Active Mineral...

Specifications

Removes up to 99. 99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, Bacteria, and more | 10-stage filtration | pH level increase up to 10 | Water Pressure: 40-80 psi | Water Temperature: 38-100 F (4-38C) | Capacity: 50-100 gallons per day | Storage Tank Capacity: 4 gallons | Max TDS: 1000ppm
Pros
  • Saves your timenUnique and advanced featuresnLeak-freenQuick connect fittingsnEasy to installnAlkalizes your waternValue of moneynAn under-sink water filtration systemnEasy to use designnDual-protection with double-sealed filters
Cons
  • Shorter lifespan of filters

Express Water Reverse Osmosis Alkaline Water Filtration System is an exception in the world of reverse osmosis systems. The first stage is a sediment filter that removes dirt, dust, rust, and other particulates.

The 2 nd and 3 rd stage are carbon granular filters that treat chlorine, volatile chemicals, bad taste, and odor compounds. In the 4 th stage, the RO membrane removes the harsh and harmful contaminants such as metal, arsenic, radium, TDS, and fluoride.

From 5 th to 9 th stage, a complete alkalization procedure tales place where the acidic levels of water are controlled, the pH levels are increased, and essential minerals are added back.

The 10 th and final stage is a post activated carbon filter that ensures no particulates are left in the water. The lifespan of the filters is a bit shorter as compared to other competitors.

The first 3 filters last for 6 months. The RO filter needs to be replaced once a year. Alkalization remineralization filter lasts for 6 months and the UV light and post activated carbon filter lasts for 1 year.

The storage tank has a water capacity of 4-gallon while you can get 50 gallon per day that is enough to prove for a medium-sized family. The installation process is also simple and easy.

You don’t need to hire a plumber. Just follow the manual, bring out the right tools needed, and you are ready to drink fresh and purified water.

12. Whirlpool WHER25 Reverse Osmosis (RO) Filtration System

Whirlpool WHER25 Reverse Osmosis (RO) Filtration System - Key Features
  • Better than bottled water — Reverse Osmosis filtered water tastes better than bottled...
  • Safer drinking water — Reduce chlorine taste and odor, sediment, cysts, lead, chemicals,...

Specifications

3-stage filtration | Reduce chlorine taste and odor, sediment, cysts, lead, chemicals, and dissolved solids | Ultraease Technology | 18.46 GPD | 3-gallon storage tank capacity | 6 months filter life | 2years membrane life | EZ change indicator lights | FDA approved
Pros
  • Space-saving designnExtra long-lasting filtersnEasy to installnEasy to replacenNo maintenance requirednValue of moneynFilter change indicatornVery affordablenBetter water taste than bottled waternEfficient and durable
Cons
  • Wastes 4 gallons to filter 1-gallon waternWater flow can slow down in the RO membrane

What if we tell you that in a world full of 5 to 6 stage water filters, a 3-stage filter can offer the same efficiency? Yes, Whirlpool WHER25 Reverse Osmosis (RO) Filtration System is the one to choose when you are on a budget.

This filter has an amazing filtration performance without exaggerating useless features. In the first stage, WHEERF pre-filter removes larger particles and sediments, dust, dirt, salt, and rust so that the filter will not get clogged.

This filter needs to be replaced every 6 months. The 2 nd stage filter is the WHEERM membrane that is a semi-permeable RO membrane that filters water at high pressure. A total of 1000 TDS are dissolved in this stage along with lead, arsenic, barium, heavy metals, sodium and fluoride.

The lifespan of this filter is 2 years. The 3 rd stage is the post-filter that removes all the leftover contaminants and sediment to polish the water. The only issue with this filter is that it wastes more water than other filters. 4 gallons of water is waste to filter one gallon where other filters waste maximum of 3 gallons.

Other than that, the system is easy to install, maintain, and replace. The Ultraease technology and filter light indicator help you keep a check on the filters.

13. Global Water RO-505 5-Stage Reverse Osmosis System Water Quality Filter

Global Water RO-505 5-Stage Reverse Osmosis System Water Quality Filter - Key Features
  • High quality Quick Connect fittings for easy steps, convenient, and secure installation....
  • Removes up to 99% of Contaminants such as chlorine, lead, bacteria, arsenic, fluoride, and...

Specifications

BPA-free | removes up to 99% of contaminants such as chlorine, lead, bacteria, arsenic, fluoride, and other contaminants | 5-stage filtration | certified against NSF standard 58 | 50 GPD | safety lock | TFC RO membrane | flow restrictor
Pros
  • Ready to installnReasonable pricenHigh-quality RO filternExceptional technical supportnLead-free faucetnLightweightnFresh and purified water better than bottled waternAutomatic shut-offnNoise-freenComes with 4 replacement filters
Cons
  • Confusing instruction manualn5-6 gallon water wasted per gallon filtration

Global Water RO-505 5-Stage Reverse Osmosis System Water Quality Filter is next on our list of the best RO filters. This one is another great option to look for when you are looking for a budget-friendly filtration system.

Not only the filter costs less, but it is also energy-efficient with its automatic shut-off technology. The filter can remove up to 1000 contaminants along with total dissolved solids with its 5-stage filtration technology.

Unlike other filters, Global water RO0505 has a unique set of filtration stages that makes it outshine the competitors. In the first stage, a polypropylene 5-micron sediment filter eliminates all the dirt, dust, rust, and other sediment particulates.

The 2 nd stage is a GAC coconut shell activated carbon filter that deals with chlorine, bad taste, odor, chemicals, and turbidity. 3 rd stage CTO 5mcron coconut shell carbon filter helps remove hard to treat VOCs and the particles of chlorine.

The 4 th stage is the TCF RO membrane where all the other contaminants such as heavy metal, salt, bad mineral substance, arsenic, chlorine, lead, fluoride are removed with high-pressure.

The 5 th stage is an inline filter cartridge for the final polishing of the water. The system comes ready to install with all the connections already prepared for you. All you have to do is unbox the filter and place it under your sink cabinet.

Along with the filtration system, you get 2 sediment filters, 2 GAC activated carbon filters, 2 CTO block carbon filters, 1 Membrane, 2 Inline filters, tank, chrome faucet + colored tubing + installation kit and valves.

14. NU Aqua Platinum Series Deluxe High Capacity 100GPD 5-Stage Under Sink Reverse Osmosis System

NU Aqua Platinum Series Deluxe High Capacity 100GPD 5-Stage - Key Features
  • PREMIUM QUALITY U.S. BRAND: The NU Aqua Platinum Series has gone through rigorous...
  • HIGH FLOW RATE: At 100GPD this system doubles the output of standard under sink drinking...

Specifications

Hydra-coil technology | 99% rejection rate of 1000+ contaminants such as arsenic, chlorine, fluoride, bacteria and lead | 5-year industry-leading warranty | 100 GPD | 3.2-gallon tank storage capacity
Pros
  • Sturdy steel tanknLead-free designer chrome faucetnPremium quality filtrationnDIY installationnLifetime supportnSatisfaction guaranteenFree PPM meter and installation DVDnInexpensivenSpace-saving technologynLeak-free systemnBest for large households
Cons
  • Fixed installation affects portability

Our list ends with the NU Aqua Platinum Series Deluxe High Capacity 100GPD 5-Stage Under Sink Reverse Osmosis System. Being last doesn’t mean that this system isn’t effective enough to be on top.

100 gallon per day filtration capacity with 3.2-gallon tank storage makes the filter ideal to fulfil the requirements of families as large as 6+ members. The system is rigorously tested and approved for its water quality and filtration performance.

Use the filtered water for drinking, cooking, making baby food, beverages, brewing coffee, or for your plants. The stages of the filter are divided into two categories. The first 3-stages are for filtration and the last 3 stages are for polishing.

The stage 1 sediment filter is 10” high with a 5micron size that removes dirt, silt, rust and sand. The pre-carbon filter removes fine and deep-seated particles such as sludge, rust, color, odor pesticides and other organic pollutants.

The 3 rd stage carbon filter deals with heavy metals, chlorine, chloramine, and harmful VOCs. Stage 4 RO membrane is categorized as a polishing stage where TDS is removed with the help of a thin semi-permeable membrane.

In the last stage, a granular activated coconut shell carbon polishing filter removes all the bad taste, odor, and small particles left behind.

Reverse Osmosis Filter Buying Guide

A lot of people who have used RO water filters claimed that the water tastes better than bottled water. However, you need to find the right one to fulfill your requirements as well. To make things easier for you, here is a list of factors to consider when you are out to buy a new reverse osmosis water filtration system.

reverse-osmosis-and-osmosis-diagram
Reverse osmosis is a water purification process that uses a partially permeable membrane to remove ions, unwanted molecules and larger particles from drinking water. Source: wikipedia

Research Thoroughly

The quality of the choices you make depend on the time you spend in doing quality research. Buying a filter means you care for the health of your family. So, be very careful while searching for the best RO filter.

Do not count on just the 1 st -page search list and look deeper in the features of every product you see until you find what you expect. First, make a list of your requirements and then mark every product that is near to your needs.

Ask For Recommendations

If you are still unsure about what to choose from the list you have just made, you can ask from your trusted contacts.

Maybe you can get better options than what you searched for. Ask your family members, friends, neighbors, or colleagues to help you out. They will refer you to the RO filers they have used and provided you with real-experience reviews.

Select The Right Type Of RO Filter

Another important fact to consider is the type of RO filters you need. There are two major types; countertop RO filters and under-counter RO filters. Countertop filters are placed on your countertops due to their compact, portable, and lightweight design.

These filters are ideal for small kitchens where you don’t have much space under your counters or in cabinets. These systems are comparatively easy to set up as well.

On the other hand, under-counter RO filters are installed under the sink area of your kitchen. These systems are very easy to use and require less maintenance. Once they are installed, you can rest for years without worrying about their repairs.

Although they are a bit complex to install, you can do it yourself by following the instruction correctly. These filters are bigger in size and can produce filtered water in large capacity. These filters are quite convenient for daily water usage of medium to large families.

Size And Capacity

The installation of your reverse osmosis system depends on the size of your kitchen. Make sure that you have measured the under-sink area if you want to install an under-counter RO filter. Not every company offers a return policy.

So, if you do not have to measurements and bring home a bigger one, its placement will become an issue. The next big concern is the capacity of the filtration system. The capacity of an RO filter largely depends on its size.

Bigger systems with more filters attached are likely to produce more filtered water. They come with special storage tanks alongside the actual water capacity. Some RO filters can provide you with up to 100 gallons of filtered water per day.

Life Expectancy

RO systems come with a complete set of filters according to the number of stages it features. For example, if you buy a 5-stage RO filtration system, the lifespan of each stage’s filter will be different.

The longer the life of the filters the better the performance gets. In most of the filters, the RO membrane filter lasts for up to 2 years while other sediment and carbon filters last from 6 months to 1year. Check the warranty for your product as well.

Most of the systems come with a maximum 5-years warranty. However, some of the best ones also offer lifetime warranties.

Ease Of Installation

While most of the people have to call a plumber to fix every new machine in their house, you may want to save some money. Don’t worry and just look out for the installation process of the filter you are buying.

Make sure that proper video tutorials of its installation are available on the
internet. Its user manual should be clear and easy to understand so that you can do it yourself without paying extra to the plumbers.

Effectivity In Filtering Water

This is one of the major reasons why you are actually buying a reverse osmosis filter. RO filters are said to be the most effective in terms of making your water tastier.

Not only that, but the RO technique is also more reliable and powerful in eliminating all the harmful contaminants, bacteria, and viruses from the water.

Heavy metals, chlorine, chloramine, arsenic, lead, mercury, E-coli, pesticides, and herbicides are some of the major contaminants that become the reason for major health issues.

Make sure that every stage of your RO system removes particular contaminants and sediments with precision and perfection.

The Cost

Budgeting for buying a new RO filter is also important. These filers are not as affordable as you might think of it. No doubt that there are filers available on low-budget, but they are also in a range of hundred dollars or more.

So, when you are spending this much money to get better water quality, make sure it’s worth it. A wrong water filter that doesn’t do what it is supposed to, is no more than wasting your money down the drain.

Pay only for what the filter is capable of providing you with. Buying a filter that offers you the equal value of money is when you know you made the right decision.

Conclusion

We hope that after reading this detailed guide on the best RO filtration systems, you are able to choose the right reverse osmosis filter for your family. Every filter mentioned in this list is of the best quality.

Some are best for the budget while others are popular because of their life expectancy and capacity. What you need to do is reach out to the one closely relevant to your requirements and make a wise decision right away!

Last update on 2020-10-27 at 10:25 / Affiliate links / Images from Amazon Product Advertising API

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