Description: 4-level advanced filtration: suitable for cat drinking fountains, with a vertical 4-layer structure that can capture hair, debris, and impurities. Provide fresh and delicious water for pets. ​ Support pet health: Promote an increase in water intake for cats and dogs, which helps maintain the health of their urine and digestive systems, which are essential for pet care. ​ Quiet and for splash free compatibility: seamlessly integrated with the fountain's silent (≤ 25dB) pump and deep bowl design, ensuring that pets' drinking water is not disturbed. ​ Easy to maintain: It is recommended to replace it every 2-4 weeks based on water quality. Maintain the continuous flow of the fountain to provide natural hydration for pets. ​ Pet safety and durability: Complies with the advanced standards of fountains and is made of safe materials. Ensure long-lasting filtration performance to achieve sustained freshwater supply. ​ Specification: Color: As Shown. Material: Activated Carbon Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: Pet water dispenser filter cartridge * 1 set