Reverse Osmosis Home Water Systems
Learn How to Choose the Best One

Reverse osmosis home water systems are otherwise known as residential reverse osmosis systems.

There are several types of reverse osmosis systems. They include dispensers, counter tops, under sinks and water coolers.

These reverse osmosis home systems are designed for use in homes and are thus manufactured to produce the best results at home.

Home reverse osmosis water systems are not the same as commercial reverse osmosis filters or filters used in businesses and large applications.

They are different from commercial R.O. systems because reverse osmosis home water systems are usually less powerful and built for smaller applications.

Types Of Reverse Osmosis Home Water Systems

There are several types of reverse osmosis water systems available on the market. For this reason, it can sometimes be difficult to choose the best one.

R.O. systems vary in size and prices.

Let's take a brief look at a few types of reverse osmosis home water filters.


This is the smallest reverse osmosis system available. These systems usually store as much as 2 gallons of water at any given time.

A drawback to this type of water filter system is that it is not suitable for a large number of persons.

Counter Top

This type of R.O. home water system is best for persons who have a lot of space on their counter top at home.

This system is easily visible and is also very effective. Storage capacity is generally smaller than a under sink water filter.

Under Counter

This is one of the most popular types of reverse osmosis systems in households.

Even though they occupy a lot of storage space, they are very effective at filtering water.

Most under counter reverse osmosis water systems use 4 to 5 stages of filtration to filter the water. These stages include the use pre-filters, membranes and post filters.

Water Cooler

This type is more popular in offices than in homes but many persons use them.

The reverse osmosis water coolers today are more technologically advanced than those of the past.

Persons who choose this type of home water filter system usually consume a lot of water.

Whole House Systems

Whole house reverse osmosis home systems will supply bottle quality water throughout the home.

Not only will you drink over 95% contaminant free water, you will bathe, do laundry, cook and clean with filtered water.

Whole house reverse osmosis home water filters can be very expensive to buy but in the long run they are cheaper than buying hundreds of gallons of water a year.

Advantages Of Reverse Osmosis Home Water Systems

  • Removes over 99% of contaminants from water. Reverse osmosis water filtration has one of the highest removal rates of contaminants and impurities of all water purification systems.

    They will remove carbon, lead, mercury, as well as bacteria and some virus. R.O. systems typically have a micron level less than 0.1 which is perfect for removing contaminants that carbon filters cannot.

  • Will provide clean and healthy water for you and your family. Even though the process is slow, reverse osmosis home systems are good at purifying water.
  • They use three (3) to five (5) stages of filtration to remove water. Most home reverse osmosis water systems have 2 pre filters, a membrane and a post filter. This combination allows for complete removal of a wide scale of contaminants.
  • Much cheaper than buying bottled water. Even though reverse osmosis home systems waste a lot of water, they still work out cheaper than bottled water. Home R.O. Systems will provide clean filtered water for less than 50 cents a gallon.

Disadvantages of Reverse Osmosis Home Systems

  • Costly . To buy a home reverse osmosis system can cost several hundred dollars and that's just the cost of the system. Replacement filters should be replaced every 6 months or so. These replacement filters can also cost a few hundred dollars.
  • Wastes a lot of water. Reverse osmosis systems at home tend to use a lot of water to produce filtered water. They can waste as much as 5 gallons to produce 1 gallon.
  • Takes long to produce filtered water. Ensure that you have a sufficient storage tank because reverse osmosis home systems take a while to produce filtered water.
  • Can be noisy. It depends on the type of reverse osmosis system at your home.
  • Maintenance can be costly. To change filters and to do routine checks. Choose a company that offers this service in their package (Culligan).

Choosing The Best Reverse Osmosis Home Water System


This is the most important factor when choosing the best Reverse osmosis home water system.

If you want to enjoy filtered water for drinking, cooking, washing and showering, you should choose the whole house system.

If you want to use water for drinking, cooking and washing, you can look at the counter top or the under counter water filter system.

For strictly drinking purposes, buy the water cooler or the water dispenser.


Choose a home R.O. system that is durable and will last for years, maybe generations.

Not only should the system last long but the filters must be durable and efficient.

Pre filters should remove over 95% of chlorine and sediments from the water.

Number of filter systems.

Most home reverse osmosis systems have 3 or 4 stage R.O. systems. Only a few have 5 stage systems.

A home reverse osmosis system with 3 stages will carry one pre-filter, a membrane and one post filter. A 4 stage water system has 2 pre filters ( carbon and sediments). The 5 stage system has 2 pre-filters, 1 membrane and 2 post filters.

A good example of this is Watts 5 stage reverse osmosis system or Purotech home reverse osmosis system.


Maintenance is key. Whichever home reserve osmosis water system you choose should require little maintenance.

This maintenance should be limited to changing filters and troubleshooting the system.

You don't want to buy a water system that will cost you hundreds of dollars a year in repairs and installation.

Storage tank

You want to ensure that you always have enough water at home for your family. Remember that the process to produce filtered water by a reverse osmosis systems will take longer than other filter systems.

You can also do a research online for a few reverse osmosis home water system ratings. This research should reveal a few of the factors above.

For more information on reverse osmosis whole house systems, you can read the articles below.

Also Read:

Reverse Osmosis Faucet

How does Reverse Osmosis Work

Sears Reverse Osmosis

Compare Reverse Osmosis Systems

Kent Reverse Osmosis

Watts Reverse Osmosis

GE Reverse Osmosis Systems

Microline Reverse Osmosis

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