Replacement filter for cat fountain. Keep your cat's drinking water fresh, clean and safe. Helps you take care of your cat's health. Most of the filters on the market are made of activated carbon. But these filters are made of high-quality activated carbon resin and mesh. The water is deeply purified and safer. Features: Value pack of 12 filters. Compatible with YOUTHINK HOMMI ISYOUNG KOALAD HAPPYPAPA PEDY and others of the same size. Size: 5 inches (outer diameter) 1.5 inches (inner diameter). Double-action filter: Resin and activated carbon. Resin can soften water and reduce the risk of lithiasis. Activated carbon can adsorb impurities and odors, keeping the water fresh and clean. PP cotton can filter out hair deposits and debris to clean water. Water quality can be removed through the three three types of filtration. The outer cotton layer of each filter captures hair and debris. Three stages of filtration can ensure the quality of the water and improve the taste of fresh water for your cats. Rinse the filter with water thoroughly before using it. Easy to install on a pet water fountain. To ensure the water is clean, the filter should be replaced in time, please replace them within 2 to 4 weeks. Specification: Name: Cat Water Fountain Filter Inner Material: Activated Carbon Resin Size: Outer Diameter: 127mm/5inch Inner Diameter: 38mm/1.5inch Thickness: 8mm/0.31inch Package Information: Package Size: 14*14*11.5cm/5.5*5.5*4.52inch Package Weight: 205g Gift Box Packaging Package List: 12* Cat Water Fountain Filters