If you are searching for healthy, great-tasting, and safe drinking water at your home, investigating a Reverse Osmosis (RO) water filtration system is a great place to start. Homeowners worldwide are turning to RO systems for their everyday water needs and for a good reason. At an affordable price point, a RO system is a safe and effective solution for any homeowner.
Reverse Osmosis uses force to push water through a membrane and into a holding tank. The membrane acts as a buffer to remove toxins and contaminants from the water while letting clean and pure water through to the holding tank. One of the reasons RO systems are so popular is because of their adaptability.
Some systems can be installed directly to your home’s primary water source and provide quality water to every water supply in your home, which is a beautiful benefit. Other systems are smaller and designed to work with your current kitchen faucet to provide purified water for drinking, cleaning, and cooking.
No matter what size system you are looking for, we are confident that this guide will help you drill down the best reverse osmosis system for you. Everybody has different needs regarding their water supply, just like each home’s water is unique.
By following our step-by-step guide, you will learn everything you need (and more) about RO water systems.
Best Reverse Osmosis Water Filter Reviews
1. Waterdrop G3P600 RO Reverse Osmosis Drinking Water System – (Best Countertop RO)
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I think Waterdrop has a winner on their hands with the G3P600 they also have a G3P800 model, which can handle up to 800 gallons per day. It is an extremely user-friendly water filtration system thanks to its easy filter removal and color-coded filter labeling system.
Each filter has a dedicated job to do when it comes to filtering the water, and the filter labels identify what that is, and they each have a unique color. With five different filters, it would be easy to confuse them with one another; if that were to happen, you would not have the best filtering performance.
In addition to user-friendly attributes, the brushed nickel faucet looks modern and luxurious. The RO system has a few safety filters built-in to avoid leaks, and the included RO tank stand ensures that the tank will stay upright, avoiding massive issues.
The tank is sleek and does not take up much space under your sink. The 600 gallons of water it produces a day is massive as well. The average adult only needs around 1 gallon/day to stay fresh.
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2. Home Master TMAFC-ERP Reverse Osmosis System – (Best Under Sink)
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Reverse Osmosis (RO) water filtration systems are among the most popular choices for homeowners. The Home Master TMAFC is one of the highest-rated filters in the class. The system’s overall design will work for any kitchen; it is small and compact for a RO system while still providing all the key benefits one should expect from a RO system.
The 7-Stage filtration system greatly filters out all the common water contaminants you will find in municipal water supplies. By combining the features of Reverse Osmosis with 7 specific stages of filtering, you will notice an immediate improvement in the water’s taste, clarity, and odor.
The easy installation of the RO System is one of its most popular characteristics. Many folks get nervous about installing anything in their home, but plumbing can be something that people avoid at all costs. With the Home Master system, you should have no fear! It was designed with the consumer in mind, and we are confident that this is one of the easiest DIY water filter installations that you can find.
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3. APEC Water Systems 6-Stage Reverse Osmosis System
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I cannot say enough good things about the APEC Alkaline system. The installation is smooth, and the added instructions were detailed and very easy to follow.
The six filtration stages do an excellent job of removing various contaminants and even tackle total dissolved solids! The additional pH level from the alkaline filter was measurable in water testing and made the water taste great!
The reverse osmosis tank is small enough to fit under most sinks and quietly refreshes itself. The alkaline filter that was supposed to add minerals to the water did just that as our calcium levels grew after water testing.
There is a reason why the APEC system is so highly rated all over the world; it is a quality product and is easy to maintain.
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4. iSpring RCC7AK 6-Stage Under Sink Reverse Water Filter System
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iSpring has a long list of reverse osmosis systems for us, and the RCC7AK 6-Stage filter proved a great choice for many homes. The six unique stages of filtering re-mineralization greatly remove impurities and total dissolved solids from your water.
We especially liked that the filters are long-lasting and very easy to change in and out. Installation is made easy because the iSpring system includes multiple thread fittings so that your existing water line can easily be attached to the RO system.
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5. PureDrop Under Sink 5 Stage Reverse Osmosis Filtration
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Installing the PureDrop RO system was a joy. They took the time and detail to ensure that each word in the instruction manual made sense, and it would have been hard to screw up this install.
The quick-connect fittings are a game-changer, in my opinion. They are easy to connect, and they are going to protect against any leaks that may occur.
All the materials are made up of food-grade parts, and I feel like this will help combat bacteria build-up over time in the water lines. The five filtering stages effectively remove impurities, and the water tastes great.
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6. iSpring RCC7AK-UV 75GPDUnder-Sink Reverse Osmosis
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The iSpring system is back on our list, but this time it improved the final stage of water purifying. While water is in the holding tank, an ultra-bright UV light is shining down on your water, killing any sneaky little toxins that could have made their way through the filtering. This results in some of the best-tasting water we have tested.
The European-Style brushed nickel faucet looks great and is highly functional. Too often, manufacturers will include a cheaply made faucet, which ruins the experience for many people. You will not have that issue with this iSpring product or any other. You should not be concerned about installing this system; it was straightforward.
This economical water filter and softener system is America’s favorite brand of water filtration system. It is based on a 5-stage reverse osmosis system and mounted under the sink for easy storage and fitting.
It removes up to 99 % of contaminants, including lead, chloride, arsenic, asbestos etc. The system can easily be installed by yourself with all parts included and clear, easy to follow instructions and videos.
To fit, attach the tubing to quick-fitting connectors and lock. No threading pipes are needed. Water enters the system through a series of filters. The first is a PP sediment filter. Next is the Carbon KDF (GAC) filter, and finally, a carbon block (CTO) filter.
These remove large contaminants and protect the RO membrane from chlorine and other chemicals. Next, is the RO filter which removes particles down to 0.0001 microns, ensuring that your water is as pure as possible. Water then passes through a final GAC filter before arriving at the faucet. This gives you bottled quality water with no hardness and no sodium.
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7. Express Water Reverse Osmosis Water Filtration System
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When it comes to installing and inserting the filters into the Express Water System, it simply could not be easier thanks to Express’s easy-to-read and detailed filter labels. Each filter is clearly marked with an abbreviation that tells you the filter’s micron rating and a number that tells you which stage of the filtering process it goes.
The filters are easy to change out, too! An included water tank stand keeps the tank upright and safe from spills or other disasters.
In addition to simple-to-use filters, the Express system does a wonderful job of removing several contaminants found in many water supplies. In total, 108 major contaminants will be removed throughout the RO process and 5 stage filtration process.
The first 3 stages of the process do a great job removing sediment, chlorine, and other contaminants that cause odors and poor tastes. The 4ths stage is the one that does the heavy lifting; it grabs the fluoride, TDS, and other small micron elements.
The Express System can produce over 50 gallons of purified water in a day. Thanks to the dedicated faucet, this should easily accommodate the drinking water and cooking needs of everyone in your home.
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8. iSpring RCS5T 500GPD Commercial Tankless Reverse Osmosis
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For over ten years, iSpring has been a staple within the filtration community, and products like this are the reason why.
Many RO systems need holding tanks and take up a lot of space. But the iSpring RCS5T uses a pump and water discharge system, which saves space and still provides all the benefits of a RO system.
The 5-Stage filtering system has unique levels that each target a different type of contaminant. Starting with the sediment removing layer and ending with a carbon filter, your water will come out clean, odorless, and pure.
The included chrome faucet is one of the nicest optional faucets we have seen and is a great addition to your sink and countertops.
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9. Whirlpool WHER25 Reverse Osmosis (RO) Filtration System
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Whirlpool is one of the most trusted names in household appliances, and they have entered the reverse osmosis water filter game with an affordable, effective product.
The three stages of filtering are less than multiple competitors, but water testing proved that this system can still hang.
The filters are some of the easiest we have installed to this point. The twist-lock technology is simple, but it feels solid, and I do not believe that any leaks will be happening. The filters have a long lifespan and will not require changing very often. The LED indicator light gives you peace of mind, as well.
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