High Compatibility: Pack of 12; Diameter: 2.5" x 2.5" x 0.2". Compatible with PetSafe Aqua Fountain Aqua Cube, Aqua Fountain Aqua Falls, Current Pet Water Fountain, and Catit Square Mini Flower Pet Water Fountain. The cat water fountain filter replacement is precise in size and easy to install Multiple Filtration: The cat fountain replacement filter is filled with premium activated carbon and non-woven fabric, fully isolating cat hair and food residue, removing impurities and particles, filtering heavy metals and odors, softening tap water, and obtaining clean and fresh water Protect Your Pet: This pet water fountain filter replacement is made of high-quality materials, safe, and odorless. It plays an important role in improving water quality and protecting the health of pets' urinary systems to keep your pet healthy Regular Replacement: To ensure the health of your pets, please maintain the habit of changing the filters for pet cat water fountain every two weeks. Compatible with PetSafe cat water fountain charcoal filters replacement rectangle for aqua cube pet fountains. Compatible with aqua cube pet fountain carbon replacement filters. Pet water fountain charcoal filter replacement for aqua cube 12 pack Customer Service: If you are unsatisfied with the mini cat water fountain filters, please feel free to contact us. We will try our best to provide you with perfect after-sales service. Pet drinking fountain filter, cat water fountains filter for drinking, pet filters for cat water fountain, water fountain filter for cats inside, premier pets water fountain filters replacement, pet water fountain filter for cats dog, premier pet replacement carbon filters, premier cat fountain filters replacement ONLY Compatible with PetSafe Aqua Fountain Aqua Cube, Aqua Fountain Aqua Falls and Current Pet Water Fountain.