Best Reverse Osmosis Water Filter

With a great variety of water filters, it is not easy to pick the perfect one for your house. If the quality of the water that comes from your tap doesn’t satisfy you, then think about installing a reverse osmosis filtration system. Have a look at these reviews and find out which unit is the best one. Below there is detailed information on the top-rated filters that are popular in 2015.

Tap Master TMAFC Artesian Full Contact

home master TMAFCThis filter reduces chlorine, chemicals, solids and other contaminants by 98%.

All Tap Master filters come with larger tubing and pipe fittings than other regular filtration systems, meaning that they ensure better water flow. This system treats the water that is going to the storage tank and then passing to the faucet. At the end of the filtration process, you get magnesium and calcium-enriched water for drinking.

The water undergoes seven stages of filtration. As the result, you get pure water. The filter treats up to two and a half thousand gallons. The reviews of this filtration system found on the web are mostly positive.

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tap master tmultraThis filter works well at reducing contaminants and microorganisms contained in the tap water.

It comes with a Fast Flow kit that ensures the double water flow.

The filter is very easy to change as it doesn’t require any tools. An Audible Alert will send you a notification when the time is ripe for changing the UV filter.

This water filter won lots of positive reviews and is highly rated. Many users keep talking about its large hoses that ensure proper water flow.

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iSpring 75GPD

ispring 75gpdThis filter uses a five-stage filtration process. At first, a five-micron sediment filter removes solid impurities from the treated water. The next five-micron granular activated carbon filter reduces taste and smell of chlorine. Then the carbon block filter deals with the residual color and aftertaste.

In the last two stages, the water goes through the RO membrane that removes dissolved salts and other contaminants and then passes from the steel storage container to the faucet.

The design of this filtration system ensures noiseless operation.

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iSpring RCC7AK

ispring rcc7akUnlike the models mentioned above, this system features six filtration stages, one of which is alkaline mineral one. The iSpring RCC7AK replenishes the water with minerals that have been removed during the filtration process. The filtration process ends with the water becoming alkaline. The installation process doesn’t require much time and effort. In many reviews, a few users commented that the filtration process helps improve the taste of the tap water.

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Watts WP5-50 Premier

watts wps-50This filtration system works similarly to those mentioned above. It comes fitted with five stages. The RO system uses a sediment filter, coconut-shell carbon block filter, one more carbon block filter, a membrane, and a granular activated carbon filter.

Designed to eliminate 17 connections the system reduces the risk of leakage.

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AMI Home System

ami home systemThis filtration system treats up to fifty gallons of water a day. It effectively reduces chemicals and biological contamination of water.

It comes fitted with the standard five-stage filtration process with the water getting through five different filters. As the result, you get pure drinking water.

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Hydro-Logic 31040 Stealth-RO200

hydrologic_ro200According to many positive reviews, this filtration system leaves behind the ones mentioned above. Since it can filter up to two hundred gallons of water a day, it is perfect for a big family. It removes about 98% of impurities and chlorine. The system wastes four times less water than other filtration systems in this category.

Since it comes fully assembled, you can start using it almost in no time.

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What Is an RO Filter?

One uses the reverse osmosis technology to desalinate water and remove impurities from it. During the filtration process, water pressure forces contaminated water molecules through a semi-pervious membrane that rejects most impurities. This technology is now incorporated in many water filters to produce pure drinking water.

RO systems get rid of different types of ions and molecules from liquids efficiently. One can use them not only for the production of drinking water but industrial purposes as well.

There are lots of RO filters available, but all of them are pretty the same. What set one filtration system apart another is the quality of filters and membranes and how many stages of filtration the water undergoes.

How Does an RO System Work?

A reverse osmosis process lowers the salt level and reduces various water contaminations, producing purified drinking water.

Although most reverse osmosis filters function similarly, their performance may depend on different factors. These factors are the following: the pressure of incoming water, its temperature, quality of membranes and filters, and the type and amount of total dissolved solids.

The filtration process is all about forcing the water through a membrane and some filter elements that block debris and impurities. Afterwards, the pure water goes to a holding tank equipped with a faucet.

A reverse osmosis system includes the following steps:

prosPrefiltering stage. Before going through the membrane, the water enters the prefilter that filters out large particles. In the prefilter, there may also be an activated carbon filter for better results. Without this stage, the RO membrane wouldn’t last long.

prosMembrane. Later the water gets through the RO membrane that blocks smaller particles, allowing O2 and H2.

prosFinal filtering stage. Going from the membrane the water enters a holding tank. This phase is all about the water running from the holding tank through a faucet. Equipped with an automatic shut-off the filter system keeps the water in the holding tank until you turn the faucet on. A carbon filter does final treatment.

What Does an RO System Remove?

Although there is no chance to get 100% pure water, the system removes up to 99% of the colloids, bacteria, dissolved salts, particles, and pyrogens. The RO membrane rejects particles which molecular weight is higher than that of H2O. For instance, the molecular weight of H2O is eighteen. Therefore, Ca and Na will go through the membrane as they are lighter than water. The same happens with the gases contained in the water.

What about Fluoride?

Note that fluoride may cause fluorosis. An RO system does an excellent job when removing particles that include fluoride. It can reduce up to ninety percent of fluoride. Since the compounds that contain fluoride are heavier than H2O molecules, the RO membrane rejects them. The smaller microscopic holes of the membrane are, the bigger amount of the rejected fluoride is.

Gain and Loss of an RO System

Although a reverse osmosis water filter produces purified water, it may also have some cons. Look through the following information before purchasing one.


  • Produces purified water: water desalination, removal of contaminants and pathogens.
  • Removes unpleasant odors and tastes.
  • Easy to maintain.
  • User-friendly.
  • Cost-effective.


disadvantagesNot all RO filtration systems work well at removing dangerous chemicals such as pesticides, chlorine, and herbicides which molecular weight is smaller than that of water. If the system comes equipped with a carbon filter, then it blocks these chemicals. The reviewed units all feature carbon filters. So they produce purified water for drinking.

disadvantagesRO systems are likely to waste a significant volume of the treated water. They consume about two-three gallons to produce one gallon of drinking water.