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Five Great Reverse Osmosis Water Filters

Updated on May 22, 2016
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Slaine M. Logan hails from the state of North Carolina. She has long been an avid researcher, product reviewer, and health fanatic.

Just as you should not ingest your toothpaste, you should also avoid ingesting fluoride from drinking water.
Just as you should not ingest your toothpaste, you should also avoid ingesting fluoride from drinking water. | Source

Understanding Reverse Osmosis

Osmosis is an important biological process in nature. Without it, life as we know it would not be possible. It is defined as a solvent moving through a semi-permeable membrane from a lower solute concentrated area to one that is higher concentrated, until the two sides are balanced. It is the most common way that water is transferred in, out, and between cells.

Reverse osmosis is when water is deionized by moving it through a special type of semi-permeable membrane. This requires external forces such as pressure, due to the fact that osmosis is a naturally spontaneous process, therefore, the reverse is not. Ocean water can be desalinated through this process and converted into drinking water. An effective reverse osmosis membrane will be capable of removing approximately 99% of the salts, as well as other harmful particles and bacteria. If there is a water emergency in your area where 100 percent removal of bacteria is essential, you should boil your water before drinking, and do not rely solely on an RO filter to complete the entire process.

Reverse osmosis filters are also effective at removing another harmful ion that is unfortunately deliberately injected into many water supplies during the treatment process - fluoride. For several decades, this has been introduced to people's drinking water because it is believed to have a benefit to strengthening tooth enamel. However, any benefit it may have from topical application does not outweigh the health risks it carries when it is swallowed. Toothpaste is in fact user directed to not be swallowed.

Below are some highly recommended reverse osmosis filters for removal of a wide variety of particles that may not have been caught by the treatment process.


Water is consumed by everyone on a daily basis. Therefore, you should do your best to make sure what you are drinking is free of harmful toxins.
Water is consumed by everyone on a daily basis. Therefore, you should do your best to make sure what you are drinking is free of harmful toxins. | Source

Home Master TMULTRA Ultra RO Undersink Reverse Osmosis System

Made by Home Master Filters, they make a very high claim for the performance of this model. Home Master believes this undersink brand removes as close as to 100 percent of all microorganisms - 99.99 is the amount that they list. According to customer reviews, it is certainly not being heavily disputed.

In addition to a membrane, the ULTRA Reverse Osmosis System also makes use of UV light, which is claimed to be part of the secret to this exceptionally high standard.

Depending on the location, well water can be exceptionally prone to having a high concentration of metals or sulfur compounds that will significantly alter the taste, and sometimes not for the better. This model successfully filters out up to 98% of those undesirable metals and solids, along with chemicals used during the treatment process.

An additional advancement to the Home Master ULTRA Reverse Osmosis Water Filtration System is equipped with a device known as Fast Flow. When using an RO filter, it will tend to slow down the rate of flow from the faucet. This device will speed it up to up to twice the flow rate of most RO systems.

The filter membranes on these are also phenomenally long-lasting. Each membrane will last approximately one year, or filter 3,000 gallons of water before a replacement is required.

Home Master is confident enough in the performance of this model that they offer a 5 year limited warranty, as well as a 30 day, 100 percent money back if the user is not satisfied.

APEC Water Ultra Safe & High-Efficiency Permeate Pumped Reverse Osmosis Water Filter System for Low Water Pressure Homes (RO-PERM)

If you live in an area with low water pressure, this model has just what you need. It is designed for systems that run between 30-50 psi, which will have the added effect of filling the storage tank significantly faster. It is ideal for people who live in areas with well water, where many standard model reverse osmosis filters may not function effectively due to the lack of sufficient pump strength.

Similar to the Home Master Ultra, the filter membranes have an exceptionally long lifespan. These will last twice as long as the standard, or successfully filter twice the gallons. The RO-PERM comes with a faucet that is 100 percent free of lead. APEC Water guarantees the RO-PERM can remove up to 99 percent of a wide variety of metals, bacteria, and other commonly occurring pollutants. The pump in this model has an added bonus in that it also does not need electricity in order to function.

If you are an American that makes a priority of buying domestic, then this, or possibly another of APEC Water's models might just be for you. All APEC products are made in the USA. The RO-PERM also has an array of available upgrades such as a larger tank, pH enhancers, and even an ice maker kit.

A reverse osmosis water filter.  Great for fluoride, metal, and particle removal.
A reverse osmosis water filter. Great for fluoride, metal, and particle removal. | Source

iSpring #RCC7AK 6-stage 75 GPD Reverse Osmosis Water Filtration System with Alkaline pH Filter and Brushed Nickel Faucet

The iSpring 75GPD is meant for homes with average water pressure. If you live in a well water area, this may not be the ideal product. But for most urban and suburban areas, this will be an excellent choice.

This filtration device works in six steps. The final step will be what is known as alkaline remineralization. With some standard or below average models, beneficial metals and other essential trace minerals may sometimes be filtered out by the reverse osmosis membrane. Most of the top of the line models are better at not removing essential minerals, while this model goes a step further in making sure of it. This last step adds back any of these beneficial particles that may have been caught in the process, so not only will you get the harmful components removed, but you will be certain to have any good natural water additives returned to the final product.

No help will be needed when installing this particular model. iSpring takes pride in their engineering of easy installation filtration devices. Everything is easy to screw on, and the material is of exceptional quality. There should be no leakage through any of the threads. You can filter up to 75 gallons per day. In addition, for any Americans that are looking for another domestic model, these are also manufactured in the United States.

Brondell H2O+ Circle Water Saving Reverse Osmosis Water Filter System, WQA Gold Seal Certified

The Brondell model, on the surface, is a smaller and simpler looking device than the others. However, looks can be deceiving. As simple as it looks, it has advanced water saving technology, being up to ten times more efficient than traditional models. For every 2.1 gallons of water filtered, it will yield one gallon of drinkable water.

If you own or have in the past owned a traditional model, one of the first things you will notice when you install it underneath your sink is how little space it takes up compared to your previous brand. This means more storage room. Its all-in-one build is more attractive than the several visible tubes and components that are present in its competition. If you value a neat look to the inside of your cabinets, this is a good choice.

The simpler design also offers fewer opportunities for leaks, as well as an exceptionally rapid refill rate. Its six liter tank will refill in under one hour, which equals the speed of electric pumps. This is in part due to its efficiency in steps. While most of the other exceptional brands complete their filtration in 5-7 steps, this is done in just four. However, that means it does not have the remineralization step.

EXPRESS WATER - 5 Stage Home Drinking Reverse Osmosis System PLUS Extra Full Set- 4 Water Filter (CLEAR)

This model, from Express Water, filters everything from harmful bacteria, to heavy metals, to chemicals in five steps, boasting up to 99 percent removal. If you are not fond with the flavor of the tap water in your area, this device can remedy that for you. The GAC carbon filter that is used in the second stage of the process will remove those chlorine compounds that often affect the scent or taste. The fifth and final step is particularly interesting, doing what they term a "polishing" of the water to enhance its taste. Express Water heavily stresses the favorable taste of the final filtered product.

It also performs well in the efficiency aspect, averaging a 3:1 waste to filtered ratio. Customers report that it lasts longer if it is used regularly, as opposed to sitting idle for long periods of time.

For an exceptional quality model, it is not overly priced, and Express Water will give you one set of replacement filters with the purchase. The chrome finished faucet that comes with it is exceptionally good looking.

Should you have any problems with the product, they not only carry a limited warranty of one year, but also a support staff that is easy to reach by phone. Their customer service is highly touted. You should not have any problems with the installation, though this looks like one of the more complex models, every component comes with color codes to assist with the instructions.

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