... high-tech Nano-metal clusters media(Nano-KDF) The Water filter jug's Material:plastic:AS,.PPMaterials inside: Active carbon,resin,nano ... .activated carbon core: Reduces unpleasant tastes and odors.Tourmaline ceramic filter element:Releasing negative ions, negative ionizing water immediately.Rich in ... .Rmoval of rust,worms,algae and other suspended contaminants. Water filter jug