Over the past ten years a large body of peer-reviewed science has raised concerns that fluoride may present unreasonable health risks, particularly among children, at levels routinely added to tap water in American cities. ENVIRONMENTAL WORKING GROUP, July 2005.

Fluoride (F-) is a common constituent of many minerals. Municipal water treatment plants commonly add fluoride to the water for prevention of tooth decay, and they try to maintain a level of 1.5 - 2.5 mg/l. Concentrations above 5 mg/l are detrimental to tooth structure. High concentrations are contained in waste water from the manufacture of glass and steel, as well as from foundry operations. Organic fluorine is present in vegetables, fruits, and nuts. Inorganic fluorine, under the name of sodium fluoride, is a waste product of aluminum and is used in some rat poisons. The MCL established for drinking water by the US EPA is 4 mg/l.

Water travels through 3 stages of filtration:

• First stage, water flows through a 20" sediment filter cartridge that removes sediment, silt, sand and dirt. Also extends the life of water softeners and water filters, and prevents damage to control valves or pumps.
• Second stage, water flows through a fluoride reducing mineral tank. Crystal Quest® Fluoride Water Filters are utilizing high capacity Eagle Activated Charcoal Fluoride Removal Media - Bone char carbon is a unique carbonaceous adsorbent manufactured from the treatment and carbonization of selected grades of animal bone and is used for liquid phase filtration to remove organic and inorganic species such as color bodies and many heavy metals. Bone char is different from activated carbon in that it contains both carbon surface area and hydroxyapatite lattice surface area and is produced from aged bone for better efficiency. This media has good absorption of various heavy metals and maintains alkalinity in adsorbate. It is physically stable and can be used over a wide pH range with the filtered pH generally being increased. The resulting pH will vary based on existing water conditions.
• Third stage, water flows through a 20" solid carbon cartridge for removing volatile organic carbon compounds (VOC's, insecticides, pesticides and industrial solvents).

• Riser style 1" internal flow distributor.
• 11.0 gallon-per-minute flow rate.
• 3/4" or 1" Stainless Steel Bypass Valve.
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