" The fountain filter is made of high-quality materials to protect your pet’s drinking water. Triple filtration process The filter contains resin and activated carbon and can filter dirt more effectively than other activated carbon filters. It keeps cats’ drinking water clean and fresh. 1.Polypropylene Cotton: The mesh filter can filter large substances such as hair, sediment, and debris. 2.Ion Exchange Resin: The fountain filter can soften tap water and help prevent urinary tract diseases, which is a common health problem for cats. < p>3.Activated Carbon: This flower fountain filter removes bacteria and chlorine odors for better water quality. Features: < p>Brand: JTENG Main material: resin + activated carbon + cotton polypropylene. Item size (1 piece): 12.7 cm / 0.6 cm (diameter * thickness) Item weight (8 pieces): 142 g Package dimensions: 13.27.714.2 cm Package Content: 1 x JTENG Source Filter (8 pieces/box).