Crystal Quest Countertop Replaceable Triple Ceramic Plus Water Filter System 8 stages of filtration - Conveniently provides 10,000 gallons (1-3 years, or when the flow of water will automatically either stop or slow down greatly.) of water. Great for homes, apartments or office use. Eagle Redox Alloy is a major advancement in water treatment technology that works on the electro-chemical and spontaneous-oxidation-reduction (REDOX) principles. Chlorine is instantaneously and almost inexhaustibly oxidized. GAC is universally recognized and widely used as an effective adsorbent for a wide variety of organic contaminants, such as chlorine (99.9%), chemicals linked to cancer (THM's, benzene) pesticides, herbicides, insecticides, volatile organic compounds (VOC's), PCB's, MTBE's and hundreds of other chemical contaminants that may be present in water, bad taste, and odors from your drinking water. The cartridge can be cleaned up to 30 times (about once a month). A diverter valve near the aerator switches between filtered and unfiltered water. Sits on the counter and easily connects to most kitchen faucet. Dimensions: 15"L x 13"H x 5"W