Description Replacement filter for cat fountain. Make sure your cat’s water is fresh, clean and safe. Helping you take care of his health. The water is deeply purified and safer. Features: Compatible with YOUTHINK, HOMMI, ISYOUNG, KOALAD, HAPPYPAPA, PEDY, DADYPET, automatic flower fountain and other of same size. Size: 5 inch (outer diameter), 1.5 inch (inner diameter). Activated carbon can absorb impurities and odors, keep water soft and clean. Water quality can be eliminated by the three 3 types of filtration. The outer cotton layer on each filter captures hair and debris. Three stages of filtration can ensure water quality and improve the taste of fresh water for your cats. Rinse the filter thoroughly with water before using, easy to assemble on a pet fountain In order to ensure clean 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