Replacement filter for cat fountain. Keep your cat's water fresh, clean and safe. Helping you take care of their health. The water is deeply purified and safer. Features: Compatible with YOUTHINK, HOMMI, ISYOUNG, KOALAD, HAPPYPAPA, PEDY, DADYPET, automatic flower fountain and others of the same size. Size: 5 inches (outer diameter), 1.5 inches (inner diameter). Activated carbon can absorb impurities and odors, keep the water fresh and clean. The water quality can be eliminated by the three 3 types of filtration. The outer layer of cotton on each filter captures hair and debris. Three stages of filtration can ensure the water quality and improve the taste of fresh water for your cats. Rinse the filter thoroughly with water before use, easy to mount on a pet fountain In order to ensure the cleanliness of the water, the filter should be replaced in time, please replace it within 2-4 weeks. Any problem, please contact our store without hesitation. Honor to serve you! Specification: Name: Cat Water Fountain Filter Inner Material: Activated Carbon Size: Outer Diameter: 127mm, Inner Diameter: 38mm, Thickness: 8mm Package Information: Package Size: 13 * 13 * 1cm / 5.12 * 5.12 * 0.39in Package Weight: 10g Plastic Wrap Package List: 1 * Cat Water Fountain Filter