Cobalt Hyper-Safe Reverse Osmosis System

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We have replaced this product with a newer and better performing system.  See the new system here: US Water Systems All American 5 Stage Reverse Osmosis System. Replacement filters for the Cobalt system are listed below.

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US Water Systems Cobalt Hyper-Safe Reverse Osmosis System - Simply the best at removing chemicals, chlorine, chloramines, fluoride...AND BACTERIA!

Odds are, if you are reading this, you are very concerned with removing Chloramines and Fluoride - it is no longer and issue with you - you have already decided that you want water that is as Chemical-Free as possible. Some people question if fluoride is harmful, but you already know! The Cobalt Hyper-Safe 5-Stage RO system uses all NSF, WQA and FDA Certified components, and is engineered to remove the widest spectrum of contaminants of any reverse osmosis system, due to its enhanced filtration.


  • All Components are NSF, FDA & WAQ Compliant or Certified
  • Full 3/8" Flow From Tank-to-Faucet
  • Deluxe John Guest 3/8" Tank Valve
  • Deluxe John Guest Inlet Valve
  • All-American Made Filters and Membrane
  • 3-Year Warranty
  • Upgraded Designer Faucet in Choice of Two Colors
  • 4.5 Gallon Tank
  • High Pressure Permeate Pump Upgrade Option For Houses With Ice Makers, Multiple Outlets, Or Installations In Basements, Garages, and Mechanical Rooms

bpa free5-Stage Design

  • Stage 1 - Carbon Block Filter Removes Sediment, Chlorine and Other Chemicals
  • Stage 2 - Enhanced Chloramine Reduction Cartridge Also Removes Chemicals
  • Stage 3 - Enhanced Fluoride Reduction Cartridge
  • Stage 4 - USA-Made Premium RO Membrane
  • Stage 5 - Quantum Disinfection and Granular Activated Carbon Final Polishing Filter Kills Bacteria and Enhances the Taste of the Water

Includes NSF Certified 4.5 Gallon Storage Tank

Completely BPA-Free

The BPA scare was directly due to information coming from some polycarbonate plastic materials. These are the hard shatter-resistant clear (or colored) drinking water bottles and things like baby bottles. Typically you will not see any BPA in plastics like polypropylene or PE as it is not one of the plastics used in the processing of the material. NSF does scan for BPA, so if there was elevated levels in the product it would fail the material extraction test.

Removes or Reduces the following:

Typical Contaminant Removal

  • Arsenic
  • Asbestos
  • Barium
  • Bacteria
  • Cadmium
  • Chlorine
  • Copper
  • Cryptosporidium
  • Cysts
  • Fluoride
  • Giardia
  • Hexavalent Chromium (6)
  • Lead
  • Pesticides & Herbicides
  • Prechlorate
  • Radium 226/228
  • Selenium
  • TDS
  • Toxoplasma/Entamoeba
  • Trihalomethane (THM)
  • Turbidity
  • VOC's


  • 3-Year Warranty (excludes filters, membrane is pro-rated)
  • Utilizes ALL NSF & FDA Approved Components
  • 4.5 Gallon NSF Certified metal tank with NSF liner (BPA Free)
  • NOTE: Tank can lay on its side
  • Utilizes Quick-Connect (Push-in) Fittings
  • Includes Automatic Shut-Off Valve (ASO) to shut down system when tank is full

Includes Everything for Under-Sink Installation

  • All Filters and Membrane
  • All Tubing
  • All Fittings Necessary for Installation
  • Tank Shut-off Valve
  • Chrome, Brushed Nickel, or Oil Rubbed Bronze Lead-Free Non-Air Gap Faucet
  • All Fittings Necessary for Installation
  • Installation Manual
  • On-Line Installation Videos
  • US Water's Legendary Telephone Technical Support

additional information

DimensionsRO Module: 16" w x 19" h x 7" d RO Module (with permeate pump): 16" w x 19" h x 8" d Tank: 11" d x 16" h
Warranty3 Year Warranty
ManufacturerUS Water Systems
More Information