When you think about the best reverse osmosis system, you think about water filters able to produce pure water with added minerals for better health and water taste. We have talked about water filters many times before, but today we will discuss each product as we included it into one of 3 main reverse osmosis systems categories: whole house, under the sink, and countertop/portable water filters.

How did We Choose Each of the Best Reverse Osmosis System for this List?

We focused our research with priority upon users’ needs:

  • Some need the best whole house water filters to meet all of their needs and homes;
  • Others enjoy more using under sink water filters for using cleaner, healthier tap water for cooking, washing, and drinking.
  • Many users prefer a portable/countertop water filtration system because they live dynamic and highly mobile lives.

In the search for the best products in each category, we asked for details from the manufacturers, browsed the forums and customers’ reviews, discussed with specialists in the field, and researched their environmental importance.

Before we start, you should know that most reverse osmosis systems on the market fall in the “under sink water filters.” However, we found some whole house RO systems and portable ones as well.

Best Reverse Osmosis System: Whole House Water Filters

For this category, we picked the four best reverse osmosis systems that meet the whole house water filtration criteria. In other words, they provide pure yet mineralized water for large homes and families, businesses, and even gardens. People prefer them when they register constant large water consumption daily or when they have to rely on well water, highly contaminated city water, and so on.

 

Product Name Pure Water/Day Filter Life Flow Rate Removes Filtration Stages Best For

iSpring RCS5T 500 W-H Reverse Osmosis Water Filter
Check Price
Up to 500 gallons 3 years 10-15 GPM 99% of 1, 000+ pollutants 5 EDITORS’ CHOICE: Living & Best Price

Evolution HydroLogic W-H Reverse Osmosis Water Filter
Check Price
Up to 1000 gallons 2 years 7 GPM 94% TDS 3 Stress- Free Whole House Water Filtration

Apex W-H Reverse Osmosis Water Filter
Check Price
Up to 3000 gallons 2 years 14 GPM 99% of most contaminants 4 Industrial/Commercial use

Weco HydroSense Reverse Osmosis Water Filter
Check Price
Up to 500 gallons 2-3 years 7 GPM 98.5% of all impurities 6 Innovation Technology

Now let’s delve in the reverse osmosis system reviews for each product!

best reverse osmosis system iSpring

Best For: GREEN LIVING & BEST PRICE

AFFORDABLE ON-DEMAND WATER

ISPRING RCS5T 500 REVERSE OSMOSIS WATER FILTER

  • Patented dual-flow RO membrane
  • 5 filtration stages remove up to 99% of more than 1, 000 pollutants
  • Filter Life: up to 3 years
  • Waste Water Ratio: 1:1
  • 15 x 8 x 18 inches
  • 32.7 pounds

Check Price Read User Reviews

Removes 99% of 1, 000+ pollutants including chlorine, fluoride, lead, arsenic, pesticides, pathogens, sulfur, THMS, PFOA, and PFOS
Eco Impact Excellent. For every purchase you make, iSpring donates water filtration systems to vulnerable communities around the world.

Why Should You buy the iSpring RCS5T 500 Reverse Osmosis Water System

We had talked about iSpring when we discussed both best whole house water filters and best under sink water filters. Without a doubt, iSpring is one of the most powerful and popular players in the field. This product is our choice in whole house RO filters because it can fit a wide variety of needs. As is, you can install it to purify and sterilize the water of large home or small businesses such as restaurants, beauty salons, offices, and more. But let’s see other important tech specs!

  • Tank-less RO water filtration system;
  • The 500 GPD is the maximum production rate, not the recommended daily usage amount;
  • Dual-flow RO membrane receives water from both sides of the membrane;
  • Comes with a built-in pressure gauge to provide an accurate pressure reading;
  • Comes with a booster pump;
  • You can also add a holding tank to meet high water usage requirements;
  • 30-day warranty against manufacturer defects.
Pros Cons
Extra points for environmental impact You may need a pressurized tank for a steady supply of pure water to keep up with high water consumption demands
Excellent filter life and filtration results Short warranty
Tank-less, on-demand RO system
Unbeatable price for the featured hi-tech
Automatic flushing system

Verdict

We mentioned the iSpring brand many times before and we are glad to learn they are not only making some of the best whole house water filters overall but some of the best reverse osmosis systems for large homes or small businesses, shops, etc. The iSpring RCS5T 500 features a 1:1 water waste ratio, a dual-filter membrane, and an excellent price. Its compact shape and size make it a great choice to install it in a large or small space with little effort. The enthusiast users’ ratings, price, and the brand’s commitment to a water charity in vulnerable areas are also compelling reasons for buying this product.

best reverse osmosis system HydroLogic

Best For: STRESS-FREE WHOLE HOUSE RO WATER FILTRATION

HEAVY USE TANK-LESS REVERSE OSMOSIS WATER FILTER

HYDRO-LOGIC 31023 REVERSE OSMOSIS WATER FILTER

  • Two RO membranes
  • Supplemental KDF/Carbon filter to ensure 3 stages of filtration remove up to 94% TDS and other contaminants
  • Filter Life: up to 2 years
  • Waste Water Ratio: 1:1
  • 21 x 11 x 11 inches
  • 15.31 pounds

Check Price Read User Reviews

Removes 94% TDS, chlorine, iron, sulfur, and heavy metals.
Eco Impact Good.

Why Should You buy the Hydro-Logic 31023 Reverse Osmosis Water System

The next installment on our list of reverse osmosis system reviews is the Hydro-Logic RO water filter for your home, garden, and even office. It is a heavy duty product with one of the highest flow rates and GPDs on the market. It is also versatile enough so you can always change the KDF filter for another sediment filter (in case you want to purify well water). It is a durable, reliable, and easy to install a product that will turn your water into a stream of health and excellent taste. Let’s see other tech specs that should interest you!

  • Tank-less RO water filtration system;
  • Provides 1000 gallons of clean water per day, meeting the needs of large families, businesses, or hydroponics/gardens;
  • High durability polypropylene construction enhances the product’s resilience;
  • Comes with everything you need for quick installation;
  • A handful of other accessories available for purchase;
  • You can install it on the floor if you want;
  • 1-year warranty against manufacturer defects.

 

Pros Cons
Complete installation package You may find that some components are missing from the package
Excellent filter life and filtration results Pricey
Tank-less, on-demand RO system
Durable and resilient
Great for heavy duty water use

Verdict

The Hydro-Logic reverse osmosis whole house water filter is an excellent choice if you need to use plenty of water every day without much stress. The 2 RO membranes and the KDF filter make the product attractive for city water in case you have a large home, a business, an office, or you manage hydroponics and small gardens. One of the best reverse osmosis systems in the tank-less department, the Hydro-Logic offers clean, mineralized water. If you worry about hard water, bacteria, or specific contaminants in your tap water, you can pair this RO filter with a water softener or a faucet water filter.

best reverse osmosis system Apex

Best For: INDUSTRIAL / COMMERCIAL USE

HEAVY DUTY USA-MADE RO SYSTEMS

APEX MR-C SERIES 3000GPD REVERSE OSMOSIS WATER FILTER

  • Three RO membranes remove 99% of lead, nitrate, fluoride, and mercury
  • Supplemental 5-micron sediment filter and two 10-micron activated carbon block cartridges to remove impurities and contaminants
  • Filter Life: up to 2 years
  • Waste Water Ratio: 2:1
  • 26 x 12 x 37 inches
  • 95 pounds

Check Price

Removes 99% of most contaminants, heavy metals, salts, nitrate, fluoride, chlorine, benzene, radon, solvents, and more.
Eco Impact Great. BPA-free. NSF and FDA certified.

Why Should You buy the Apex MR-C Series 3000GPD Reverse Osmosis Water System

We have given a lot of thought to this particular product, especially since the price can put off a lot of people. But, on the other hand, quality does not come cheap, and Apex is a reliable brand known for its high standards of quality. Price aside, this is the best reverse osmosis system for industrial and commercial needs. After all, we do not only use/drink water at home, do we? Its applications and tech specs determined us to include it on our list of reverse osmosis system reviews. What else do you need to know more about it? Here it is!

  • Applications: apartment buildings, offices, restaurants, and food/drinks preparation operations, medical offices, laboratories, schools, beauty parlors, aquariums, and hydroponic growing operations;
  • Provides 3000 gallons of clean water per day;
  • The 10-micron activated carbon block cartridges remove chlorine, chloramine, bad tastes and odors, herbicides and THMs, pesticides and carcinogenic impurities;
  • Comes with high-pressure booster pump, automatic low-pressure cut-off sensor, pre-filter pressure gauges, valves with flow meters, and more;
  • Features manual ON/OFF switch;
  • S.A designed and built;
  • No-questions-asked product replacement.
Pros Cons
Best reverse osmosis system for industrial/commercial applications
Excellent filter life, filtration results, and GPD Pricey
Easy installation onto existing plumbing
Durable and resilient
Made in America

Verdict

The Apex MR-C Series 3000GPD reverse osmosis system is a long-term investment. Considering its tech specs, features, and capabilities, we think it is worth every cent. The staggering number of residential, commercial, and industrial applications is a compelling reason to include the product on your business’s budget provision. After all, we need pure water in all aspects of our life, not only for drinking. You would be happy to learn your child’s school has one of these or that your doctors use one in their offices. In other words, if you are a professional searching for the best RO water filter on the market for massive buildings and use, check the Apex out!

best reverse osmosis system Weco

Best For: INNOVATION TECHNOLOGY

VERSATILE RO WATER FILTRATION SYSTEM

WECO HYDROSENSE-0500DI REVERSE OSMOSIS WATER FILTER

  • 5 x 100 GPD RO membranes
  • Sediment and carbon block pre-filters and an extra deionization resin filter to achieve 0 ppm in TDS
  • Filter Life: up to 2-3 years
  • Waste Water Ratio: 1:1
  • 15 x 20 x 34 inches
  • 70 pounds

Check Price Read User Reviews

Removes 98.5% of all impurities, nitrate, 90-97% of fluoride, lead and overall TDS, pesticides, chlorine, chloramines, carcinogens, bad odor, and taste.
Eco Impact Great.

Why Should You buy the WECO HydroSense-0500DI Reverse Osmosis Water System

The last item on our list of whole house reverse osmosis system reviews is the WECO HydroSense-0500DI, a versatile and highly innovative product. It is the only reverse osmosis water system on our list featuring 5 RO membranes and a resin deionization filter achieving 0 Parts Per Million TDS. The price is excellent considering the tech specs and features, while the product as a whole can satisfy large families, small businesses, and other operations as well. Let’s see now more features!

  • Applications: homes, small offices, small shops, pet shops, and more;
  • Double-capacity filters lead to fewer replacements to save time and money;
  • The filters, besides removing impurities and contaminants from the water, also protect your plumbing from clogging;
  • It may also work for well water, as it eliminates herbicides, insecticides and industrial chemicals seeping into groundwater; make sure you pair it with other filtration systems for highly contaminated water to make sure.
  • Features powder-coated steel;
  • As the installation method goes, it is a floor-stand RO water filter;
  • In the package you will find automated pressure sensors & pump;
  • Warranty upon manufacturer request.
Pros Cons
5 RO membranes, 6 stages filtration
Excellent filter life and filtration results
Compelling price for the tech specs
You can add accessories (UV light) to it
Smooth and noiseless running

Verdict

The WECO HydroSense-0500DI is a technological piece of jewelry without breaking your bank. If residential and commercial water filtration is your priorities, the HydroSense is precisely what you want in terms of capacity, excellent reverse osmosis water purification and sterilization, tech specs, and durability. Although it is a little challenging to find the warranty policy of the product, the installation manual is clear. You can install the RO system yourself or work together with a professional plumber. Versatile and efficient, this is the best reverse osmosis system with the highest number of RO membranes for its size and purpose.

Remember that the best home reverse osmosis system should meet the water needs of large homes, buildings and businesses, families, and groups. If you trust your water to be relatively clean and you want filtration only for washing, drinking, cooking, healthier children and pets, then let’s move on to our next chapter: under sink reverse osmosis water filters!

Best Reverse Osmosis System: Under Sink Water Filters

When it comes to reverse osmosis systems, under sink water filters jump to mind. We have presented you already with our under sink reverse osmosis system reviews, but now it is time to look at them from a new angle. So let’s see together the best reverse osmosis system that can go under your sink and turn tap water into a spring of healthy joy!

Product Name Pure Water/Day Filter Life Flow Rate Removes Filtration Stages Best For

Home Master Artesian U-S Reverse Osmosis Water Filter
Check Price
75 gallons 1 year 10 – 15 GPM 98% of all contaminants 7 EDITORS’ CHOICE: Green Living & Best City Water

Express Water U-S Reverse Osmosis Water Filter
Check Price
100 gallons 1 year 8 GPM 99.99% of most contaminants 10 Price/Value Ratio

Home Master Hydroperfection Reverse Osmosis Water Filter
Check Price
75 gallons 1 year 10-15 GPM 99% of over 1,000 contaminants 9 Highly Contaminated Water
best reverse osmosis system HomeMaster Artesian

Best For: GREEN LIVING

CITY WATER INNOVATIVE RO FILTRATION

HOME MASTER ARTESIAN REVERSE OSMOSIS WATER FILTER

  • Seven-stage RO filtration system
  • Modular “all-in-one” design with disposable filters
  • Filter Life: 1 year
  • Waste Water Ratio: 1:1
  • 12 x 16 x 20 inches
  • 14.5 pounds

Check Price Read User Reviews

Conclusion

The Home Master TMAFC-ERP Artesian Under Sink Water Filter is the best reverse osmosis system for city water on our list. Besides its amazing tech specs, filter life, stages of filtration, and the ecological impact, The Home Master Artesian features an innovative and patented full-contact technology, which adds calcium and magnesium twice during the water purification process. A must-have for all people concerned with the quality of their water and the environment as well.

best reverse osmosis system Express Water

Best For: PRICE / VALUE RATIO

EXCELLENT MINERAL WATER ON TAP

EXPRESS WATER ALKALINE REVERSE OSMOSIS WATER FILTER

  • 10-stage RO filtration system
  • Includes a sediment filter, carbon block, and granular carbon filters to eliminate chlorine, volatile organic chemicals, bad smell, and taste
  • Filter Life: up to 2 years
  • Waste Water Ratio: 2:1
  • 18.2 x 18 x 16 inches
  • 27 pounds

Check Price Read User Reviews

Removes 99.99% of lead, chlorine, fluoride, arsenic, bacteria, cyanide, giardia, radium, asbestos, calcite, heavy metal, viruses, pharmaceuticals, and more.
Eco Impact Great.

Why Should You buy the Express Water Alkaline Reverse Osmosis Water System

The second item on our list of best reverse osmosis systems that go under your sink is the Express Water Alkaline. With 10 stages of filtration to remove contaminants and add oxygen and healthy minerals back to your water, this under sink RO filter is the best money can buy. We like this product as well for its safety features: each filter is double-sealed to provide the best filtration efficiency and value. Moreover, the leak-stop valve shuts off the water flow in case of accidental excess water. Nevertheless, this under sink RO system comes with many other tech specs you will love:

  • You can replace the sediment, carbon block, and granular activated carbon filters twice a year, and the RO filters just once a year;
  • The system adds ionic-activated minerals, so your water picks up healthier content as it passes through;
  • The system comes with brass feed adapter and quick connect adapter, fitting the two most common sizes of under sink pipes 1/2″ and 3/8″;
  • Features a label-color matching system so you can install the entire device under one hour;
  • The system also adds antioxidants to your water;
  • You don’t need to refill or activate the system as it automatically fills the water tank with 100 gallons/day high-quality drinking water;
  • 1 year warranty.

<

Pros Cons
10 stages of full filtration You may find some design flaws on some of the products
Excellent filtration results
Most affordable in this category
Easy and quick installation
Enthusiast customer reviews

Verdict

The Express Water Alkaline Reverse Osmosis Water Filter features one of the best price/value ratios on the market. Upon checking things with the manufacturer and browsing the forums, we noticed that, with one or two exceptions, all users love this easy-to-install, no-fuss device. It is the best reverse osmosis system for apartments and homes, small businesses, or offices. We recommend this system wholeheartedly because it is the best money can buy for purified, healthy, and great-tasting water all day, every day!

best reverse osmosis system HomeMaster Hydroperfection

Best For: HIGHLY CONTAMINATED WATER

INNOVATION RO TECH FOR WELL WATER

HOME MASTER HYDROPERFECTION REVERSE OSMOSIS WATER FILTER

  • Nine-stage RO filtration system
  • Iron pre-filter protects RO membrane from iron up to 1ppm
  • Filter Life: 1 year
  • Waste Water Ratio: 1:1
  • 16 x 20 x 12 inches
  • 19.7 pounds

Check Price Read User Reviews

Conclusion

The Home Master Hydroperfection Under Sink Water Filter is, as we said on the previous occasion, the best reverse osmosis system for contaminated water. When you put together its tech specs with the fact that the package includes a 3.2 gallon storage tank, a 3/8-inch feed water adapter with shut off valve, refrigerator connection kit, a luxury standard brushed nickel RO faucet with adapter, faucet adapter, 110v power supply, drain saddle, and instructions you can understand why the price may be high but worth every cent.

These were our under sink reverse osmosis water filter reviews. In case you want to see more such systems, don’t forget to check out our previously published guide on them!

Best reverse osmosis system: countertop / portable

We are now in the third chapter of our quest to find the best reverse osmosis system for your needs. Our last category includes countertop /mobile devices. The hours of research that we spent looking for the best portable reverse osmosis filter led us to the following:

Product Name Pure Water/Day Filter Life Flow Rate Removes Filtration Stages Best For

APEC C-P Reverse Osmosis Water Filter
Check Price
Unlimited 1 year 9 GPM 99% of all contaminants 4 EDITORS’ CHOICE: Green Life on the Road
best reverse osmosis system APEC Portable

Best For: GREEN LIFE ON THE ROAD

INNOVATION TECHNOLOGY IN PORTABLE RO FILTERS

APEC PORTABLE COUNTERTOP REVERSE OSMOSIS WATER FILTER

  • 4-stage RO filtration system
  • Filters close in an aluminum premium case for easy transportation and installation everywhere
  • Filter Life: 1 year
  • Waste Water Ratio: 1:1
  • 15.5 x 6.5 x 6.5 inches
  • 27 pounds

Check Price Read User Reviews

Removes 99.00% of arsenic, barium, cadmium, chromium, fluoride, copper, lead, radium, bad taste, odors, other pollutants.
Eco Impact Excellent. WQA certification. For every purchase you make, APEC brings clean and safe water to vulnerable communities all over the world through their donations program.

Why Should You buy the APEC Portable Reverse Osmosis Water System?

Imagine you can take pure, healthy water with you in a backpack or a roller duffle bag next time you move, travel, or go to your college dorm! The APEC Portable filter is the best reverse osmosis system for frequent travelers, students, renters, backpackers, and all people who are on the road. It works for apartments, RVs, condos, dorm rooms, and so on. However, more than the freedom of movement this device offers, we have to highlight its slick hi-tech design and features:

  • You can hook it up to almost all standard faucets in minutes, as it needs no installation and works on a “plug-and-drink” principle. Keep in mind that it does not work with unconventional taps.
  • It works with water pressure up to 80, so you can use it in almost any environment.
  • The high-capacity filters are made in the USA;
  • There is no tank to use or carry; when you move out from one rental to another, unplug it, take it under your arm and have pure water anywhere you want;
  • It improves the quality of tap water, coffee, tea, and other beverages;
  • Installation is super-easy;
  • Warranty upon manufacturer request.
Pros Cons
A slim, slick, lightweight, portable RO system Some say it can leak sometimes
On-the-go excellently filtered water
No complicated installation required
Excellent price for its specs
Compatible with 3 types of faucet mounts

Verdict

How would you like to have pure, clean, and healthy water in your motor home, rented condo, college dorm room, apartment, or even a hotel (when you often travel for work or pleasure)? Now you can plug-and-drink the APEC Portable RO system and forget you ever tasted bad tap water before. The APEC is impressive in its design, tech specs, quality, price, and raving customers’ reviews. A must-have item if you travel far and wide, and even if you do not!

Now that we saw each best reverse osmosis system in its category, it is time to talk things in depth when it comes to this particular tech and the needs it may meet. For you to calibrate your expectations correctly and make an educated decision regarding reverse osmosis filters, here are the main things to know!

What is Reverse Osmosis Technology?

Reverse Osmosis – or RO systems – utilizes a a semipermeable membrane to purify the water by stripping it of its impurities and contaminants (of a certain size). The resulting water that goes through that membrane (or membranes) is pure and clean. RO systems, just as you saw when you read the reverse osmosis system reviews above, can successfully remove a very high number of impurities and contaminants, including some viruses and bacteria as well, and also salt from saltwater. 

When water goes through a reverse osmosys water system, it leaves behind all impurities, salt, and minerals. It is what specialists call “permeate” or “product water”, although it is pure water nonetheless. The other water stream – the one containing the left-behind impurities – goes by the name of wastewater. There are multiple solutions to manage the wasted water and you should buy the best reverse osmosis sistem that best fits your needs:

  • The wastewater goes straight to the drain;
  • The reverse osmosis system sends it back into the main water supply;
  • The RO device can recycle it through the system to save it for plants or washing your pavement.

When you read about the waste water ratio on our reviews above – although we explained this when we discussed specific under sink reverse osmosis water filters – you should understand that for one gallon of pure water you consume a gallon of water (that the system wastes). The ideal ratio is 1:1, but given the tech advancements of today, a 3:1 waste water ratio is still a good deal. The permeated water stream goes one way, while the waste water goes another way.

Are Reverse Osmosis Systems Healthy for Us?

Nevertheless, RO systems receive criticism because the pure water is minerally dead, considering that tap water does contain healthy minerals. For this reason, RO system come with a re-mineralization and alkalization system, which adds back the essential minerals we all need to ingest with our water. Some brands, as you already noticed above, are very mindful about the added minerals regarding their origin, quality, and concentrations.

How Many Reverse Osmosis Filtration Stages are Necessary?

Looking at the best reverse osmosis water filter in each of the three categories, you noticed that most products take pride in their great number of filtration stages. Most experts agree that a minimum of 4-5 stages work well for city tap water to ensure its purity and your health benefits. In the case of contaminated water, the more stages a system has, the better.

Do You Need a Permeate Pump and Other Accessories with Your RO System?

A permeate pump – which is different from an electric pump, mind you – increases the RO system’s efficiency without putting extra pressure on the filter or the process. Moreover, a permeate pump also makes the RO system more eco-friendly and more economical, as it makes the filtration system more productive. In short, the answer is yes – if you have the possibility to add a permeate pump to your reverse osmosis water filter, you should consider it.

Speaking of accessories, UV light is efficient in treating the water against bacteria and other dangerous contaminants. Some of the systems we detailed above work together with added UV lights.

What Else Should You Know about Reverse Osmosis Water Filters?

The most important lesson to take from this article chapter is that you should test your water with the help of professionals before buying an RO system or a traditional water filter for that matter. When you learn about the impurities and contaminants in your water, you are able to make better decisions regarding the type and size of the water filter your home, office, or business needs.

Some go for classic whole house water filters to put their minds at ease, others prefer under sink RO systems for mineral tap water, while others (who move around a lot) simply love to pack their portable reverse osmosis system and set course for their next destination.

What Is Your Favorite Best Reverse Osmosis System?

Large families/homes, buildings, and businesses opt for whole house water filtration (with or without reverse osmosis). Are you a fan of such product or do you prefer the simpler route of installing an under sink RO filter for great-tasting, healthy water, beverages, and foods? Let us know in the comment section if you already use an RO system at home and how you feel about it!

Pin It on Pinterest

Share This