Replacement filter for cat fountain. Keep your cat's drinking water is fresh, clean and safe. Helping you to take care of your cat's health.The water is deeply purified and safer. Features: Value pack of 12 filters. Compatible with YOUTHINK, HOMMI, ISYOUNG, KOALAD, HAPPYPAPA, PEDY water fountain and other of same size. Size: 5in(outer diameter), 1.5in(inner diameter). Activated carbon can adsorb impurities and odor, keep the water fresh and clean.PP cotton can filter out hair, sediment and debris to clean water. Water quality can be removed by the three 3 types of filtration. The external cotton layer on each filter captures hair and debris. Three steps of filtration can assure the quality of the water and enhance the taste of fresh water for your cats. Rinse the filter with water thoroughly before using, easy to mount it on pet water fountain. In order to ensure the water clean, the filter should be replaced in time, please replace them within 2 to 4 weeks. Any problem, please contact our store without hesitation. Honor to serve you! Specification: Name: Cat water fountain filter Inside material: Activated carbon Size: Outer diameter: 127mm/5in, inner diameter: 38mm/1.5in, thickness: 8mm/0.31in Package Information: Package size: 14 * 14 * 11.5cm/ 5.5 * 5.5 * 4.52in Package weight: 205g Gift Box Packaging Package List: 12* Cat water fountain filter