Features: Upgrading your pet water fountain with this filter featuring multilayer filtration technology to effectively eliminating impurities, odors, and harmful substances for freshing drinking water. Use selected nonwoven fabric and active carbon, this replacement filter ensures safety while offering easy maintenances. Great for cats owners prioritizing pet healthy, this water filter delivers great purification for fuss freely hydrations solution. Design for daily use of home, seamlessly integrates with automatic pet water dispensers to maintain clean water for various cats households or sensitive pet. Engineered with precise fit leakproof construction, this filter reduces residues buildups and suppors uninterrupted hydrations for cats of all age. Specifications: Product Dimension: Approx. 7.6cm/3inch Component: Nonwoven Fabric, active carbon Type: 01/02/03 Package Includes: Type 01: 8pcs Pet Fountain Filters Type 02: 12pcs Pet Fountain Filters Type 03: 16pcs Pet Fountain Filters note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item.