Reverse Osmosis water filtration and water treatment - Producing fresh and healthy drinking water from all types of water sources, including salt water, brackish water, heavily contaminated surface water, highly contaminated well water and more...

• Ultra-Filtration of public water supplies
• Exceptional filtration of well water & ground water
• Filtration of stored water systems
• Desalination of brackish water and salt water for general fresh water use
• Filtration of salt water and/or brackish water for safe and healthy drinking water
• Models with the addition of a UV Sanitizer provide the healthiest bacteria, virus and microorganism free water available.
• SCROLL DOWN TO VIEW & ORDER ALL our Reverse Osmosis Filter System Options

If your source water is highly contaminated, and your water treatment requirements require high quality water with a minimum of chemical manipulation then a Reverse Osmosis filtering system may be just what you need for clean, healthy drinking water, in some of the harshest of conditions.

Reverse Osmosis is a process for removing dissolved mineral salts, organic molecules and many other impurities by forcing water under pressure to pass through a multi process filtration system with semi-permeable membranes.

Since Reverse Osmosis does not occur naturally, it must be created by applying pressure to the water in order to force it through the membrane to remove the solids from the water. With pressures from 200 to 400 psig in most applications or even up to 1,200 psig for sea water desalination and high solids conditions. Click here to learn more about how Reverse Osmosis Filtration works

We offer below counter, whole house and high capacity commercial use Reverse Osmosis water filters and RO water purification and filtering systems. From 50 gallons per day to over 10,000 gallons per day for commercial and municipal water treatment - we have your Reverse Osmosis water filtering solution.

A number of our Reverse Osmosis water filter systems include Ultraviolet / UV Sanitizers for the ultimate assurance of clean and healthy water. The addition of UV disinfection assures the removal of 99.99% of all micro-organisms from your water ( Click HERE to view list of Microorganisms disinfected by UV ).

For any RO filter system that does not include an integrated UV water sanitizer, you can always add any of our 250+ UV Water Sanitizers currently offered as an additional water treatment component for the added assurance of the healthiest of clean, pure and sanitized water in your home, office, or business.

FREE Shipping is always offered for orders shipped inside the Continental USA. We are also able to (and often do) ship our water filtering and water treatment systems worldwide - South America, Africa, the Middle East and other locations. Contact us directly for information and pricing - TOLL FREE 1-800-738-1750 .

We have shipped our water filter systems worldwide. We have also custom designed water filter systems that are currently in use in some of the most remote regions of the the world, including the Caribbean, South America, Africa, Afghanistan, the Middle East and more. Please contact us directly and we'll be happy to discuss designing an affordable and efficient custom water filtration and treatment system for your specific requirements.

From remote homes, Caribbean Island resorts and homes, to remote towns and villages in South America, Africa and the Middle East, Purest Filters has been providing the best and most efficient in water filtration and water treatment systems in the U.S. and beyond since 1997.

We are ALWAYS happy to help you in your selection and answer any questions you may have regarding your own particular water filtering issues - Please call us TOLL FREE. You will not speak with a salesperson or customer service rep, you will speak directly with the water treatment specialist and owner of Purest Filters - 1-800-738-1750

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NO SALES TAX for orders outside of FLORIDA - Quantity Discounts are always Available
FREE GROUND SHIPPING** for all orders within the Continental U.S.
For orders outside the Continental USA - Contact us directly for additional SHIPPING CHARGES

Custom Designed RO Water Treatment Systems with optional World Wide Shipping - We regularly design, build and ship our home and commercial use Reverse Osmosis Water Treatment Systems outside of the U.S. - South America, Africa, The Middle East and all over the World - Contact us directly if you have questions or require shipping outside of the Continental U.S.

Questions? Call Toll FREE - 1-800-738-1750

View all of our Water Filtering and Water Purification Systems:

[ All Well Water Filter & UV Water Treatment Systems ] [ Mini-Rack ALL-IN-ONE Combo UV Water Purifiers ] [ Whole House Cartridge Style Water Filters ] [ Whole House Water Filters w/ UV Water Purifiers ] [ Whole House Cartridge Style Arsenic Water Filters ] [ Whole House Cartridge Style Fluoride Water Filters ] [ Whole House Cartridge Style Iron Water Filters ] [ Whole House Full Size IRON Removal Systems ] [ Ultraviolet Water Purifiers - 250+ Units ] [ Bio-Logic UV and Filter System ] [ Reverse Osmosis Filters - Undercounter, Whole House & Commercial Use ] [ Under Counter Water Filters ] [ Counter Top Water Filters ] [ REPLACEMENT Cartridge Filters ] [ Refrigerator / Ice Machine / Water Cooler Water Filters ] [ Water Softeners ] [ UV Germicidal Info ]