Instant purchase O.K. ⚠︎︎ Opened only for photos. MyfatBOSS 10-pack PETLIBRO Cat Water Fountain Activated Carbon Filters 2.1L Automatic Water Dispenser Replacement with 10 Sponges, Ion Exchange Resin, Multi-Layer Filtration, Removes Bacteria, Pet Hair, Food Scraps, and Dust, Providing Fresh Water Product Information for Pet Automatic Water Dispenser Filters: Cat Water Fountain Replacement Activated Carbon Filters *10, Sponges: *10, Materials: Activated Carbon, Ion Exchange Resin, Cotton, Maifan Stone, Compatible Models: PETLIBRO WF002-11M/WF002-11W/WF002-11G and 2.1L Large Capacity BPA-Free Pet Automatic Water Dispenser Replacement, also compatible with other water dispensers with the same shaped filters. Protecting Pet Health: The cat water fountain filter effectively filters out impurities, dust, pet hair, chlorine, heavy metals, and odors, softens hard water, and prevents the growth of bacteria, keeping your pet's water clean and fresh. When used with an automatic pet water dispenser, pets will be more interested in flowing water and drink more. Using a cat water fountain filter not only protects your pet's health and well-being but also helps extend the life of the fountain pump. How to Use the Cat Water Filter: After the cat filter arrives, rinse it with water or soak it in water for 2-3 minutes to remove the activated carbon attached to the surface of the filter. To keep the pet water dispenser clean, it is recommended to replace the filter every 2-4 weeks and to clean each part of the water dispenser. Multi-Layer Filtration of Cat Water Fountain Filters: PETLIBRO pet water dispenser filters are designed with a three-layer structure using activated carbon, ion exchange resin, and high-quality cotton, achieving multi-layer filtration, effectively improving water quality, increasing oxygen content, and providing clean and healthy water for pets. Package Contents: petlibro replacement filters *10, petlibro replacement sponges *10. To maintain optimal filtration performance, it is recommended to replace the filters and sponges every 2 weeks or when the flow rate significantly decreases.