MULTI-STAGE BASIC WATER FILTER PH001 WITH TWO "MICRONETS" - filters out particles such as sand, silt and rust while allowing health-promoting minerals such as calcium and magnesium to pass through the mesh. LONG LIFE - 360 litres per filter.US MADE COCONUT SHELL ACTIVATED CHARCOAL - removes chemicals & pollutants. At the same time, it improves the taste and smell of drinking water. KDF FILTER REMOVES HEAVY METALS - Lead, copper, arsenic, mercury, aluminum as well as chlorine.STONE AND SILICA BLEND OF MORE THAN 10 DIFFERENT MATERIALS – including ORP Spheres, Alkaline, Tourmaline, Far Infrared & Maifan Stones. Increases alkalinity (pH), decreases ORP, softens hard water for more digestibility, and adds trace elements and minerals.HIGH QUALITY & ECO-FRIENDLY MATERIALS - BPA free & food grade, certified by SGS, member of Water Quality Association. Save money and save the planet by replacing 8300 plastic bottles with a filter.