Replacement filter for cat fountain. Keep your cat's drinking water fresh, clean and safe. Help you take care of your cat's health. Most filters on the market are made of activated carbon. But these filters are made of high-quality activated carbon resin and cotton 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 stone formation. Activated carbon can adsorb impurities and odors, keeping the water fresh and clean. PP cotton can filter out hair, sediment and debris to purify the water. The water quality can be removed through the three 3 types of filtration. The outer cotton layer of 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 install on the cat fountain. To ensure the water is clean, the filter should be replaced in time, replace them within 2 to 4 weeks. Specification: Name: Cat 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 Fountain Filter