The only way to make sure that the water you drink is actually clean and free of impurities is to install a water filtration system, that’s for sure. But with so many different types of filtration systems that you can go with, it can be rather difficult to make up your mind and choose a certain model. If you want to make sure that the type of system you invest in will actually do a great job, we recommend that you go with a reverse osmosis water filter. To find out what are the best models on the market, check out the following lines.

Top 5 Reverse Osmosis Filters Comparison

  1. Pelican Pro 6-Stage Reverse Osmosis 2. Aquasana OptimH2O Reverse Osmosis + Claryum 3. Crystal Quest 1000C THUNDER Series 4. APEC ROES-50 Premium 5-Stage 5. iSpring RCC7 5 Stage 75 GPD
  Pelican Pro 6-Stage Reverse Osmosis (RO) Image Aquasana OptimH2O Reverse Osmosis + Claryum Image Crystal Quest 1000C THUNDER Series Reverse Osmosis Under Sink Water Filter Image APEC ROES-50 Premium 5-Stage Reverse Osmosis Drinking Water Filter System Image iSpring RCC7 5 Stage 75 GPD Reverse Osmosis Water Filter w/ Transparent 1st Stage & Designer Faucet Image
  THE BEST   OUR CHOICE    
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General Information

Manufacturer Pelican Water Systems Aquasana Christal Quest APEC Water Systems iSpring
Dimensions 14.5”H x 12”W x 14.75”D 12″L × 4.5″W × 12.5″H 16″L x 8″W x 21″H + 4″ 16″W x 5.25″D x 17.5″H 14.5″W x 6″D x 18″H
Weight 8 lbs 12.3 lbs 35 lbs 26 lbs 30 lbs

Performance

Stages of Filtration
6
3
12
5
5
Operating Pressure
40-80 psi
40-100 psi
20-125 psi
40-85 psi
40-70 psi
Operating Temperature
40–100°F
40–100°F
40–100°F
40–100°F
40–100°F
Producton Rate
55.30 liters/14.61 gallons
50.42 liters/13.32 gallons
189 liters/50 gallons
189 liters/50 gallons
283 liters/75 gallons
Number of Removed Contaminants
50
60
500
1000
1000
Storage Tank
2 gallons
3.2 gallons
3.2 gallons
4 gallons
3.2 gallons
Filter Components
4-stage RO Membrane Prefilter
2-stage Carbon/Mineral Post Filter
1-stage Carbon Filter
1-stage Claryum Filter
1-stage RO Membrane
6-stage Cartridge
RO Membrane
UF Membrane
Solid Carbon Cartridge
GAC or Coconut Shell
2 stage – Eagle Redox Alloy(KDF Media) Cartridges
Sediment Filter
2 Carbon Block Filters
High Rejection RO Membrane
Coconut Carbon Filter
Polypropylene Sediment Filter
Granular Activated Carbon Filter
Carbon Block Filter
High rejection RO Membrane
Total Polishing Inline Post Carbon Filter
Removes Bacteria
Remineralization

Filter Replacement

 
Prefilter – 18 months
Post Filter – 6 months
RO Membrane Cartridge – 12 months
Remineralizer – 12 months
Carbon Pre-Filter & Claryum Post-Filter – 6 months
RO Membrane Cartridge – 36 months
UF and multi-stage – 12-24 months
Carbon Block – 6-12 months
Filters – 6-12 months
RO Membrane Cartridge – 24 months
First 3-stage Filters – 3-6 months
RO Membrane Cartridge – 24-36 months
Inline Post Carbon Filter – 12 months

Convenience

Faucet Finishes
3
3
1
1
1
Automatic Shut-off Tank
Water Detector/Flood Alarm
NSF Certification
DIY Installation

Warranty&Support

Warranty
1 year
2 year
N/A
1 year
1 year
Customer Support

Reverse Osmosis Filters Reviews

The state of your health is tightly linked to the quality of the water that you drink and cook with. Unfortunately, an aspect that worries a lot of people is the fact that the water that comes out of their taps is of a poor quality, to say the least. The multitude of contaminants that lurk in it is what makes this water such a great danger to your health, and the reason why you have to install a great reverse osmosis filter to ensure that these harmful contaminants will be effectively removed. To find out what are the best models of 2017 to go with and what makes them so great, continue to read this article.

1. Pelican Pro 6-Stage Reverse Osmosis

By far, this filter is the best choice to go with due to the fact that it has impressive water purifying capabilities. It measures 14.5 inches in height, 12 inches in width, and 14.75 inches in depth. It weighs only 8 pounds, and it’s easy to install. In order to purify the water that comes out of the tap, the unit uses 6 filtration stages during which it removes up to 50 different contaminants that it encounters. The operating temperatures of this model are between 40 degrees Fahrenheit and 100 degrees Fahrenheit. The storage tank has an impressive 2-gallon capacity. Unfortunately, the unit won’t automatically shut off when the tank is full, which is a downside considering that other models on the market come with this feature. When it cleans the water of various contaminants, it doesn’t remove bacteria as well. The lack of this feature is an important aspect to take into consideration, especially if the water that runs through your pipes is filled with various germs and bacteria. Another important safety feature that it lacks is the fact that it doesn’t come with a water detector/flood alarm. On the other hand, it boasts an operating pressure that ranges between 40-80 PSI, and it has a production rate of 14.61 gallons of water. In addition to purifying the water, it remineralizes it as well. The filter components of this model are a 4-stage RO membrane pre-filter and a 2-stage carbon/mineral post filter. The pre-filter of this unit must be changed once every 18 months, and the post filter has to be replaced once every 6 months. In addition, it’s NSF certified for its amazing performance, and it’s covered by a 1-year warranty.


2. Aquasana OptimH2O Reverse Osmosis+Claryum

This amazing water filter from Aquasana measures 12 inches in length, 4.5 inches in width, and 12.5 inches in height and it weighs 12.3 pounds. It uses 3 stages of filtration to ensure that the water you drink is of a good quality, not containing contaminants that might threaten your health. During these filtration stages, it removes up to 60 different contaminants that it encounters in the water. The components of this unit’s filter are a 1-stage carbon filter, a 1-stage Claryum filter, and a 1-stage RO membrane filter. As it purifies the water, it remineralizes it as well, thus ensuring that you will drink high-quality water that will help boost your health. Unfortunately, it isn’t capable of removing the bacteria that it finds in the drinking water. The operating pressure of this model ranges between 40-100 PSI, and the operating temperature ranges between 40 degrees Fahrenheit and 100 degrees Fahrenheit. It boasts an impressive production rate of 13.32 gallons of water, and it features a spacious 3.2-gallon storage tank. Two aspects that displease about this unit are the fact that it doesn’t come with the water detector/flood alarm feature, and it doesn’t automatically shut off when the tank is full. The RO membrane and the re-mineralizer of this model have to be changed once every 12 months, while the carbon pre-filter and the Claryum post filter have to be replaced once every 6 months. In addition, it’ backed up by a generous 2-year warranty that exceeds the standard of this market.


3. Crystal Quest 1000C THUNDER Series

The reason why this water filter is our favorite is because it offers impressive water cleansing capabilities and it comes at a decent price. It measures 16 inches in length, 8 inches in width, and 21 inches in height, it weighs 35 pounds, and it’s easy to install, so you won’t have to spend extra money to call in a professional for this task. What impresses the most about this model is the fact that it features no less than 12 filtration stages, being able to remove up to 500 different contaminants from the water due to them. The filter components that help in its process are a 6-stage cartridge filter, an RO membrane filter, an UF membrane filter, a solid carbon cartridge filter, a GAC or coconut shell carbon filter, and 2-stage Eagle Redox alloy cartridges. While it might not be able to remineralize the water during the process of filtering it of contaminants, this unit is capable of removing the bacteria that it encounters. Therefore, you can rest assured that it delivers healthy drinking water. The operating pressure that it boasts ranges between 20-125 PSI and the operating temperature is between 40 degrees Fahrenheit and 100 degrees Fahrenheit. It has a production rate of 50 gallons of water and a storage tank that has an impressive 3.2-gallon capacity. What this unit lacks is the automatic shut-off feature that would have activated when the tank gets filled, and the water detector/flood alarm feature. The maintenance work that has to be done is that you have to change the RO membrane cartridge once every 36 months, the UF and multi-stage filters once every 12-24 months, and the carbon block once every 6-12 months. In addition, it’s NSF certified for its impressive water cleansing capabilities.


4. APEC ROES-50 Premium 5-Stage

This filtration system measures 16 inches in width, 5.25 inches in depth, and 17.5 inches in height. It weighs 26 pounds and the easy installation allows you to do it yourself, helping you save money by not calling in a professional to do the task. What makes it such a great choice to go with is the fact that it features 5 filtration stages during which it removes up to 1000 different contaminants that it encounters in the water. These contaminants include the dreadful bacteria, so by installing it, you can rest assured that you will hydrate yourself in the healthiest way possible. Unfortunately, what this unit lacks is the fact that it doesn’t have remineralizing properties, so the water that it produces loses some of its health-boosting traits. Also, it doesn’t come with the water detector/flood alarm feature. It has an operating pressure that ranges between 40-85 PSI, and the operating temperature of this model ranges between 40 degrees Fahrenheit and 100 degrees Fahrenheit. The production rate of this unit is 50 gallons of water, and it features an impressive 4-gallon storage tank. Best of all, it comes with the automatic shut-off feature, so when the tank gets filled, the unit automatically stops operating until the tank gets emptied. The filters of the unit have to be replaced once every 6-12 months, and the RO membrane cartridge has to be replaced once every 24 months. Therefore, you won’t have to do a lot of maintenance work if you go with it. In addition, it’s NSF certified for its amazing performance, and it’s covered by a 1-year warranty.


5. iSpring RCC7 5 Stage 75 GPD

Another impressive filtration system that we couldn’t skip on when putting together our top of the best models of 2017 is the iSpring RCC7 75 GPD model. This unit is easy to install, it weighs 30 pounds, and it measures 14.5 inches in width, 6 inches in depth, and 18 inches in height. During the 5 stages of filtration that it puts the water through, it effectively removes up to 1000 different contaminants that lurk in it, including the dreaded bacteria. Therefore, it ensures that the water is clean enough to drink even by small children, not endangering their health in any way anymore. But this model does have a flaw, more precisely that it doesn’t have remineralizing properties, so the health boosting quality of the water that you drink will be slightly affected if you use it. It has an operating temperature that ranges between 40 degrees Fahrenheit and 100 degrees Fahrenheit, and an operating pressure that ranges between 40-70 PSI. It boasts an impressive production rate of 75 gallons of water, and it features a 3.2-gallon storage tank. The filter components of this unit include a polypropylene sediment filter, a granular activated carbon filter, a carbon block filter, a high-rejection RO membrane filter, and a total polishing inline post carbon filter. It’s NSF certified for its amazing performance. Also, it comes with the useful automatic shut-off feature, meaning that when the tank gets filled, the unit will shut off on its own. The maintenance work that needs to be done with it is that you will have to replace the first 3-stage filters once every 3-6 months, the RO membrane cartridge once every 24-36 months, and the inline post carbon filter once every 12 months. In addition, it’s backed up by a 1-year warranty.


How These Filtration Systems Work

The fact that the water we consume is not clean isn’t news to anyone, being no mystery behind the fact that each time we drink tap water we actually ingest a wide variety of contaminants. Although public water suppliers generally do their best to provide clean water for their customers, this doesn’t happen due to a wide variety of problems, the water that comes out of the taps smelling and tasting bad, and being dangerous to consume.

Water filters use various types of technologies designed to capture certain impurities in the water. Reverse osmosis is one of the most popular technologies that is based on a rather simple process that occurs naturally. These filters include a semipermeable membrane that captures large molecules and particles from the water. Usually, a reverse osmosis filter is paired with a sediment filter that retains sediments, rust, and calcium carbonate. In addition, these units also include an activated carbon filter that eliminates chlorine to prevent it from affecting the membrane. These combinations extend the lifespan of the RO filters and maximize their performance as well.


Health Benefits Provided by These Filters

These water filters are gaining a rapid popularity due to their high efficiency and effectiveness. But with so many different types of water filtration methods out there, it can be hard to understand what makes reverse osmosis such a great option to go with. To enlighten you, we will list the health benefits of drinking reverse osmosis water:

  • Lead-free water
  • Lead is among the most dangerous contaminants that lurk in tap water, and unfortunately, it’s mostly found in high numbers. Therefore, you can’t ensure that you will protect your health if you continue to consume this contaminated water. What makes lead such a big enemy of your health is the fact that its consumption leads to problems with fertility, blood pressure, nerve damage, muscle damage, and even brain damage. But with the help of such a filter, this won’t be an issue anymore as this type of system effectively removes lead from the water.

  • No more cryptosporidium
  • Cryptosporidium is a parasite that is found in contaminated water and that greatly affects the small intestines once it’s ingested. Some of the unpleasant effects of ingesting it include diarrhea, cramps, and fever. Fortunately, reverse osmosis water is free of this very dangerous parasite, so you won’t have to worry that your health or the health of any other family member might be affected by it if you install this type of filtration system.

  • Removal of sodium
  • If you or any of your loved ones suffer from liver disease, kidney disease, or if you have high blood pressure, it’s recommended to avoid consuming sodium. Unfortunately, sodium is found in pretty high numbers in the tap water that we consume, so you must find an effective solution to remove it. The best way to do this is by drinking reverse osmosis water because the filtration system that produces this healthy water removes the sodium molecules that it finds in the drinking water.

  • Improved immune system
  • There are a lot of people who have weak immune systems and who are at risk for infections related to waterborne contaminants if they don’t ensure that the water they consume is clean. This is especially true for children as their immune systems are in development, being very dangerous for them to drink contaminated water. Fortunately, with the addition of such a filtration system, you won’t only protect your immune system and the immune systems of your loved ones, but you will actually help improve it as well.


Useful Buying Guide

There are certain traits that characterize a top rated reverse osmosis filter, and in this section of the article, we will cover more details about them. By doing this, we hope to give you a bigger chance of investing in a quality product. Therefore, if you intend to buy such a water filtration system, check out the following lines to have a better understanding of what you should look for.

  • Filtration Stages

  • The first spec that you should check out when buying a RO filter is the number of filtration stages that it passes the water through. Top brands offer products that feature 5 to 7 filtration stages, but there are models that exceed this number, such as the Crystal Quest 1000C THUNDER Series that offers a staggering 12 filtration stages. The reason why it’s important for these systems to have many filtration stages that are actually effective is because, during the filtration processes, various contaminants that lurk in the water are eliminated, every stage handling certain types of contaminants.

  • Water Production Rate

  • The water production rate represents how much drinking water the system can produce in a single day, and it’s measured in GPD or gallons per day. To ensure that the RO filter you’re checking out is actually of a superior quality, the GPD values should range from 50 to 90. Just know that the water production rate that is displayed on the spec sheet of the product is rarely achieved as there are various other aspects that influence the final number, such as the water temperature, the quality of the water that runs through the pipes, and the incoming water pressure. Therefore, the numbers will probably be a bit lower that manufacturers advertise when it comes to the GPD rating.

  • Filter Lifespan

  • The reason why it’s crucial to check the lifespan of the filters is because they are the ones that influence the maintenance costs the most. If you invest in a low-quality reverse osmosis filter, expect for it to have cheap filters that have a short cycle life and that need to be replaced very often, meaning that you will spend a lot of money on maintenance work. On the other hand, if you invest in a top quality system such as the Crystal Quest 1000C or the iSpring RCC7, the filters will require replacement so rarely that you won’t be inconvenienced budget-wise.

  • Extra Features

  • Some systems come with extra features that add to their performance and that make them perform better in certain situations. The extra features that we recommend you look for include a UV light, a remineralization filter, and a pressure pump. The UV light is highly effective at killing microorganisms of all kinds, removing contaminants such as bacteria, algae, fungi, giardia, E-coli, and Cryptosporidium from your drinking water. The remineralization filter is useful as it adds healthy minerals back to the water that you consume when the filtration process ends. When it comes to the pressure pump, this extra feature is useful as it increases the water production rate and the system’s efficiency by feeding more water pressure into the filter.