Crystal Quest Calcium GAC Fluoride Reduction Filter Cartridge uses bone char carbon that 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 colored 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.

• Good adsorption of various heavy metals
• Produced from aged bones for better efficiency
• Maintains alkalinity in adsorbate