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Best Reverse Osmosis System Reviews 2017 & Guide

Are you desiring to get Best Reverse Osmosis System?

You have come to the right place. Here in this site, you will find unbiased reviews on the top rated and the best reverse osmosis system. We also have a handful of helpful guides and tips to help you find the best one that suits your needs and your budget.

While water softening systems help convert hard water into soft water, Reverse Osmosis systems, otherwise famous as RO systems are helpful in not just making the water softer but also in removing bacteria, viruses, and other chemicals, making it healthy and tastier than how it is naturally.

Heard of water distillation process? Reverse Osmosis is actually a cheaper alternative to the same. This system has been there for around four decades now and it is accepted worldwide as one of the safest and affordable ways of making water healthier and better in taste. Purification of drinking water and making almost any water drinkable is what makes the Reverse Osmosis systems a go-to choice for households, hotels, restaurants, and even at commercial establishments.

Best Reverse Osmosis System 2017 – Our Top Picks

APEC – 5-Stage Review

Top Pick: APEC – 5-Stage

APEC is the name one would trust blindly in the U.S. when it comes to purifying water. The brand knows very well about how bad and contaminated water is and thus, you would surely be assured of the functioning.

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Best Reverse Osmosis System

Best Buy: Watts Premier 531417

Watts Premier is another well-trusted brand in this industry, and this particular unit we’re talking about here is priced almost as much as the one listed above from APEC. The system comes with a multi-stage filtration process.

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Best Reverse Osmosis System – Quick Comparison!

ModelsFilteration SystemWeightBuying Now?
APEC Top Tier 5-Stage Ultra Safe5 Stage25 PoundsCheck Price
Watts Premier 531417 RO Pure Plus4 Stage16.3 PoundsCheck Price
iSpring RCC7 WQA Gold Seal Certified 5-Stage 5 Stage25 PoundsCheck Price
Express Water 5 Stage Undersink 5 Stage 30 PoundsCheck Price
APEC Top Tier Supreme Certified High Flow 90 GPD Ultra Safe5 Stage25 PoundsCheck Price

It isn’t only the osmosis part where filters are placed but there are a few before and after that too, which are placed to specifically filter out specific minerals or particles.

Best Reverse Osmosis Systems Reviews

#1 APEC – 5-Stage Reverse Osmosis Drinking

APEC - 5-Stage Reverse Osmosis Drinking ReviewAPEC is the name one would trust blindly in the U.S. when it comes to purifying water. The brand knows very well about how bad and contaminated water is and thus, you would surely be assured of the functioning of the systems they make to convert hard water to a drinkable healthy water. Here, we’re talking about the APEC ROES-50 water filter system, which is a built-in-USA machine that assures you of a proper care and service, and there is a free lifetime support.

The system is said to be removing up to 99% of contaminants including arsenic, chlorine, lead, fluoride, heavy metals, bacteria, virus and 1000+ contaminants. It is guaranteed to be noise-free, trouble-free, and has a certification from WQA for producing pure drinking water.

There’s rarely any disadvantage of this water filtering system, no wonder why we have this on the top of our list. APEC offers all carbon block filters to guarantee contaminant absorption and water purity while others use inferior GAC filters for the cost saving. Also, the unit has a chrome faucet that is 100% lead-free with an NSF & FDA certified JG Food grade tubing. For the affordable price, this is surely one of the best RO systems with a size that can fit in most of the places in your kitchen or even in the commercial place, with the dimensions of 11 x 11 x 15 inch.

Check out more details and the best price of this RO system on Amazon.

#2 Watts Premier 531417 RO Pure

Watts Premier 531417 RO Pure ReviewWatts Premier is another well-trusted brand in this industry, and this particular unit we’re talking about here is priced almost as much as the one listed above from APEC. The system comes with a multi-stage filtration process and a modular design. While some other brands care about aesthetics, the 531417 RO Pure Plus system offers more storage of water with a 3-gallon storage tank.

The components of this unit include Top-Mount-Twist, Brushed-Nickel Airgap Faucet, and Adapt-A-Valve Water Shut Off Valve. A total of four stages of filtration are done here and the RO system has got certifications from the industry standards, including NSF/ANSI Standard 58.

This is also a space-saving compact design with all the components adding up to take up space as much as the storage tank. The RO system is made in such a way that changing filters is as easy as pushing buttons and you don’t need any technical knowledge for the same. Also, the filters offer a shut-off valve that avoids any mess while changing the filters.

#3 iSpring RCC7 Reverse Osmosis Water Filter, 75 GPD

iSpring RCC7 Reverse Osmosis Water Filter, 75 GPD ReviewThis is another well-recommended model of reverse osmosis filter that is built in the U.S.A. It is a Gold Seal certified product from NSF Standard 58. Calling it a cost-effective solution is perfect because the system is known to remove up to 99% of 1000+ pollutants and minerals. The machine uses FDA food-grade material in all the parts.

The RCC7 has a 5-filter system to ensure a high-quality and good tasting water for domestic and commercial usage. One of the best things about this water filtering system is that it is customizable so that you can upgrade it easily later when you find a need to do that. It has a Brushed Nickel Faucet, and a Carbon block to remove residual color and taste.

Even though it might feel complicated at looks, the iSpring RCC7 75GPD reverse osmosis system is very easy to use and since it is an automated process, you just have to open the drinking faucet to see the drinkable and pure water flowing out to use.

The large RO membrane provided in the system is capable of delivering about 75 gallons of filtered water per day. Following are the stages of filtering seen in the RO system provided by iSpring.

  • 1st Stage: NSF Certified 5-micron high-capacity polypropylene sediment filter held in a transparent housing
  • 2nd Stage: NSF Certified GAC Carbon Filter
  • 3rd Stage: NSF Certified CTO Carbon Filter
  • 4th Stage: NSF Certified High Rejection 75GPD TFC reverse osmosis membrane
  • 5th Stage: NSF Certified Total Polishing Inline Carbon

Another reason why we would recommend this system at least for a try is the good 30-day money back guarantee, which shows the confidence of the brand on their product and its performance. One earlier model received some criticism and the makers of this RO system have worked on each.

#4 5 Stage Home Drinking Reverse Osmosis System

5 Stage Home Drinking Reverse Osmosis System ReviewA cheaper but not any compromised alternative to the above ones, the 5-stage home drinking reverse osmosis system utilizes a real and accurate reverse osmosis process. There are good quality filters included and these help in removing 99% of contaminants, and thanks to the material used to make this system, it is free of any contamination.

To make it easy to repair and find the accessories or parts, later on, the replacement items are all universal and they pass the industry standard to ensure security to all the consumers. The 5-stage system boasts a capacity of filtering about 50 gallons of water per day. Having a solid construction, the RO system is said to be noise-free and built sturdily.

This system is one of the best-rated ones in the market and most of the customer reviews talk about how easy was the installation process and how quick and good was the customer support team from the company when there was some help needed for installation or about any part of the RO system. The package already includes an extra set of high-quality replacement filters. Another advantage of this filter is that it doesn’t require electricity, but the entire filtering system works on the pressure from the incoming water.

#5 APEC Water – Top Tier High-Flow 90 GPD

APEC Water - Top Tier High-Flow 90 GPD ReviewThe very first recommendation from us was from the same brand, APEC. It is one of the best water filter systems that use reverse osmosis for the filtering but it is higher in capacity when compared to the ROES-50 model and thus is priced higher. It is made so well to ensure that you get high quality and clean water that can be used for drinking. It is a 5-stage ultra-pure system whose filters are NSF certified.

The WQA Gold Seal certified filter is meant to remove up to 99% of contaminants, heavy metals, and microorganisms as well. The super-capacity filters in this system last twice as long as the regular ones. It has 100% Lead-Free chrome faucet, plus NSF & FDA certified JG food grade tubing to provide safe, contamination-free, pure water.

Changing filters is no problem here for anyone and there is a shut-off valve that makes it easier to do so without any leakage. If you are considering the first model in the list, this APEC Water – Top Tier – Built in the USA – Certified Ultra Safe, High-Flow 90 GPD Reverse Osmosis Drinking Water Filter System (RO-90) will be only better if you are thinking to have it for a higher capacity.

The company is offering free lifetime support, and the filter requires low maintenance and is easy to install as well.

Water softeners have a very different purpose and they help remove only a few minerals including calcium and magnesium, but the RO system takes away even some heavy metal elements from water, including Nitrates, Sodium, Crypto Sporidium, Fluoride, Sulfides, Giardia, Arsenic, Mercury, Uranium, Radium and Lead.

The membranes in the reverse osmosis system help remove even some harmful bacteria and you don’t need to spend time and money in boiling water because the same purpose is solved here.

How Does Reverse Osmosis System Work?

How Does Reverse Osmosis System Work

It is no rocket science because even before machines were made for this to work, the reverse osmosis system was known for years. Tap water is forced through a membrane in a direction that is opposite to that of normal osmosis. Why reverse? The concentration usually is lower to higher but in reverse osmosis, it is from higher to lower, and while doing this, the membranes that are placed would remove all the unwanted minerals and organisms, sending out only pure water.


What does Reverse Osmosis Remove from Water?

These are not some unverified processes, so according to U.S. Center for Disease Control, a reverse osmosis system is meant to remove Sodium, Chlorine, Copper, Chromium, and Lead.

It may also remove, though depending on the type and quality of the system, particles of Arsenic, Fluoride, Radium, Sulfate, Nitrate, and Phosphorus. Not every system is made to remove these minerals given in the second list, and thus, there is no guarantee about it.

While we talk about the minerals, there is no proper study mentioning about the bacteria and viruses that are removed from water using the RO system but there surely are some of these micro-organisms taken out before the water is sent to the final tank for usage.

  • RO system removes minerals and chemicals that are responsible for the bad taste of water
  • There are minerals and chemicals found to be harmful to your health, and RO system removes those as well
  • Certain bacteria and viruses are removed by reverse osmosis filters
  • Baby formula will have only what is in the powder, with no extra minerals in the water
  • No expenses for bottled water while quality of water is maintained
  • Water pressure is enough and you don’t need a lot of electricity for the RO system to work
  • Cost of setting up a reverse osmosis system is lesser than that of a distillation filter.
  • Wastage of a lot of water is one of the disadvantages of this system because while purifying water, the RO system throws away a lot of it
  • It is a slow process and takes time for even a gallon of water to be purified using this system
  • Filters need regular maintenance and replacement, which comes at a cost
  • While the reverse osmosis system is known to remove most of the minerals, some of them are beneficial to health and that is the disadvantage when they get removed


Reverse osmosis is the way to go for households that cannot adjust with the taste of regular water. It is good to see that there are several great models of RO systems that help make the water better for drinking, but at the same time, it is confusing because each of them are so good and you ends up thinking which one to purchase.

In the list above, we’ve tried to talk about each of them and let you know the best advantages of each of the reverse osmosis systems. While you plan to get one of them, you should also make sure you are utilizing the wastewater in one or the other ways, because RO systems are known to throw out a lot of water that cannot be used for drinking.

There are several other uses of the water produced by the best reverse osmosis systems but drinking is the most important one and thus you know how important it is to use an RO system in your household. We hope you found out the list useful and it helped you choose the best one.


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  • I stay in a rented apartment. Do I have to make any long lasting changes to my sink to install this APEC 5-stage system?

    • There is usually very minimal permanent modifications for a RO system install. The drinking water faucet is designed to mount onto a .5″d to 1-1/4″d hole. If you do not have a hole you can use (ex. soap dispenser, built-in-sprayer, etc), you don’t have to mount the faucet to use the system but mounting the faucet will help dispense purified water more conveniently. There is a drain connection from the system which requires a ¼”d hole on the a drain pipe. This hole can be easily plugged when you move the system to a new home.

    • It depends on what you mean by waste. A home RO unit uses water to clean itself and wash away impurities. It’s like a lot of other water-using appliances. We use water to wash clothes, to wash dishes, to wash cars, to flush toilets. A reverse osmosis unit uses more water in its operation than you actually consume, but it doesn’t use enough that you’ll notice it on your water bill. It uses water only while it’s filling its storage tank. When the tank is full, the whole unit shuts down and no water runs to drain. It is typically like two or three extra toilet flushes a day.

    • Only the prefilters and post filters need to be replaced at least on an annual basis to ensure proper performance. Ultimately the quality of the water and the amount of use will determine the frequency of filter changes. Depending on the point-of-use RO model, the annual cost is less then $0.30 per day. The reverse osmosis membrane itself will normally last between two and five years.