Our product have CE,FDA,ROHS,SIRA,SGS certification+1 year warranty!!! What is in the filters Active Carbon, Ion-Exchange Resin, Alkaline ceramic balls, Natural mineral balls Feature and Advantage 1) Convert the regular tap water into alkaline water. 2) With a digital indicator which can remind you to replace the cartridge in time based on the drinking people number. Main Function 1) Creates a silky-smooth and sweet tasting water. 2) Helps filter out chlorine and other contaminants and permanently absorbs metals such as lead and copper, so your drinking water will be more refreshing and clear. 3) pH 8 -10.2 which help to support systemic pH balance in the body, you body will function optimally. 4) Provides low negative ORP: -100mv to -250mv, transforming regular water into antioxidant water, which reduce the oxidation of your body, you will be more youthy. 5) Reduces water molecule size, which create a very absorbable alkaline water. 6) Contains alkalinize minerals to make water more energy, you will feel vigorous drinking this energy water. Item Capacity 2 Liters of filtered water(total capacity 3.5 liters). Material Body: food-grade AS. Lid and handle: ABS. Plastic grade: BPA free Item Color White, blue , orange and green for selection, other colors can be customized if your order quantity is reach to our OEM order quantity. Weight N.W: 1 kg/pcs, G.W:1.2kg/pcs