This is a pet water fountain filter, made of premium ABS and non-woven cloth. ABS filter outer box, good protection filter elements, long use without deformation. High , whether hair, debris, or metal ions can be filtered, much convenient and practical. Features -Color: White -Material: ABS, Non-woven Cloth -Size: 10.50X10.50X2.00cm/4.13X4.13X0.79in -Removes bad odor and soften water, your pet can get better tasting water. -Active carbon absorbs water impurities such as debris, food, hair and sediment. -With replaceable filter pads design. Suitable for home and pet store use. -If multiple pet are using the fountain, you should replace the filter more frequently. -It helps to get rid of , filter hair and residue, remove and soften water, water tasting. Package list: 4 x Filter Boxes 4 x Filter Pads