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Purest Filters - Well Water Treatment Systems - Whole House Water Purifiers & Filters - point-of-entry & point-of-use Water Systems - Specialty & Custom Water Treatment Solutions - Over 17 YEARS of Sales & Service

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Reverse Osmosis (RO) Water Filters, Filtration and RO Water Purifier Systems
Water Filters Home Page > Reverse Osmosis (RO) Water Filter & Treatment Systems
Under Counter / Under Sink, Whole House & Commercial use RO Water Filter Systems - You can enjoy clean, safe and healthy filtered drinking water ANYWHERE with our Reverse Osmosis Water Filters!

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...

ALL our Reverse Osmosis Filter Systems are BPA FREE!
Reverse Osmosis Water Filtering effectively removes the following from your water:

volatile organic compounds (VOC's)
industrial solvents
undissolved solids
copper, lead, iron, hydrogen sulfide, mercury, nickel, cadmium, chromium, aluminum, rust, and water hardness

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


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

 Reverse Osmosis Water Treatment Systems

Under Counter CQ RO Systems Whole House CQ RO Systems Above Counter CQ RO System
Crystal Quest under counter and above counter RO / Reverse Osmosis water filters Reverse Osmosis Whole House water treatment systems
  • 17 Undercounter / Undersink RO Systems to choose from
  • 12-Stage to 17-Stage Filtering
  • Many include integrated UV Sanitizers and/or Pressure Pumps
  • Optional Filtering upgrades also available
  • 50, 75 and 100 Gallons per day filtering systems
  • All hardware included
  • Base priced from $278 to $692
  • Click HERE to View and Order Under Counter RO Systems
  • 9 Whole House & High Volume RO Systems to choose from
  • 200 Gallons per day to 7,000 GPD* (*gallons per day)
  • Priced from $1,495 to $7,190
  • Easily add a CQ UV water sanitizer for extra water disinfection - Priced from $169 to $569 based on the RO systems GPM water treatment
  • Optional filtered water storage tanks (165, 220 & 550 Gallons) with pumps available for safe fully filtered water storage
  • Click HERE to View and Order
  • 10-stage Reverse Osmosis filtration
  • Convenient, easy to use and hook up to your sink faucet - Home, office, RV, boat and more.
  • 50 gallons per day = 2 Gallons per hour
  • All hardware included
  • Priced at $189
  • Click HERE to View and Order


Home & Commercial Use RO Systems

High Output Commercial RO Systems
Watts R48 Series of Commercial use RO Water Treatment Systems - Commercial Reverse Osmosis Water Treatment Systems

Purest Filters Reverse Osmosis / Ultrafiltration water filtering systems are a revolutionary breakthrough in the reverse osmosis and Ultrafiltration water filter industry.

Utilizing the latest technologies in the water industry, coupled with over 40 years of manufacturing expertise, The CQ water filtering systems provide you with healthy, great-tasting water conveniently at the most affordable prices. The CQ RO water filter systems are attractive, easy to install and use with effective multi-stage filtration - remove more than 500 contaminants from your water* (*if present in the water). All our Reverse Osmosis Water Treatment Systems are BPA FREE.


View all of our Water Filtering and Water Purification Systems:

ALL Whole House & Well Water / Rain Water Filters w/ UV Water Treatment Systems ] Mini-Rack ALL-IN-ONE Combo Filters & UV Water Sanitizers ] Whole House Cartridge Style Water Filters ] Purest Filters Whole House Cartridge Systems ] Whole House Water Filters w/ UV Water Purifiers ] Whole House Arsenic Water Filters ] Whole House Fluoride Water Filters ] Whole House Cartridge Style Iron Water Filters ] Whole House Full Size IRON Filter Systems ] Water Softeners ] Ultraviolet Water Purifiers - 170+ Units ] Ultraviolet Water Sanitizer w/ Filters - 130+ Systems ] Bio-Logic UV and Filter System ] [ Reverse Osmosis Filters - Undercounter, Whole House & Commercial Use ] Under Counter Water Filters ] Under Counter Water Filters w/ UV ] REPLACEMENT Cartridge Filters ] UV Germicidal Info ] [ REPLACEMENT UV Lamps ]


Home and commercial use Reverse Osmosis Water treatment systems - RO water filters

Sales Hours: Monday - Friday: 9:00AM to 8:00PM EST
Saturday: 9:00AM to 5:00PM EST
Sunday: 10:00AM to 4:00PM EST
Service and Repair: Monday - Friday: 9:00AM to 8:00PM EST

TOLL FREE PHONE: 1.800.738.1750


View all of our Healthier Home & Commercial Use Water Filtering & Water Treatment Products:

Water Filters Home Page ] Whole House Water Filters with UV Purifiers ] IRON Removal Water Filters ] Water Softeners ] Ultraviolet Air, Room & Surface Sanitizers ]

Purest Filters - Mailing Address: 9314 Forest Hill Blvd. Suite #650 Wellington, FL 33411
TOLL FREE: 1-800-738-1750

**Free Ground Shipping in Continental U.S. for all items under 80 lbs at shipping weight.
Many items above 80 lbs require additional shipping costs. Those items are clearly marked.

*Price Match Guarantee does not include auction and bidding style competitors and web sites, or competitors that are selling factory refurbished or not new in the box items.
As we offer FREE Ground Shipping on most items - Price Match Guarantee will match competitors price plus any shipping charges they may apply to the item we are matching.
Price Match Guarantee is valid for day of sale only. Lowest Price Guarantee is only applicable to any item priced at $299.00 or above.

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