Get Started with a Free Water Consultation

What Is Reverse Osmosis & Why Is it a Good Option?


Reverse osmosis (commonly known as “RO”) serves as a great (and simple) solution for purifying water and removing foreign substances.

What is “RO”?

Reverse osmosis is a process that forces water through specialized membranes and exerts a certain amount of pressure on it to remove foreign contaminants, solid substances, large molecules and minerals. Reverse osmosis is a water purification system used around the world to help improve water for drinking, cooking and other important uses.

What are the health benefits?

RO water is likely to contain fewer contaminants. Although contaminants may not be in your water, lead can be relatively common out of most taps. Especially in areas where the water pipes and infrastructure are old and are in need of repair. Too much lead in your body can lead to increased blood pressure, reduced fertility and nerve damage. Lead toxicity can also cause brain damage and anemia in children. An RO system is also great for filtering out parasites such as cryptosporidium, which is a common contaminant in lakes and rivers. Cryptosporidium infection leads to stomach cramps, fever and diarrhea.

It tastes better!

Taste is obviously very subjective, but RO water is usually rated as better tasting than tap water by people who directly compare the two in blind taste tests, according to the National Rural Water Association. Lead, iron, nitrates, sulfur-based compounds and various chemical residues often make tap water unpalatable. The removal of these substances by reverse osmosis can give drinking water a cleaner or fresher taste.

What works best for you?

Every household and business is different. Your local Culligan Man can test your water for free, and customize a multi-stage reverse osmosis system that meets the needs of your individual water. Call today!

Find A Location Near Me


Schedule Your Free
In-Home Water Test

Get better water in your home by scheduling an appointment with your local Culligan Water Expert.

Our Products

blue wave
Water Softeners

Water Softeners

With any of our soft water systems, get more out of your water-using appliances while spending less on energy and detergent.

View Products

Water Delivery

Water Delivery

There’s never been a better time to enjoy the convenience of scheduled bottled water deliveries from the Culligan® Water Experts

View Products

Water Filtration Systems

Water Filtration Systems

Culligan's water filtration systems have improved water quality for thousands of families worldwide.

View Products