6/8 Pack Cat Water Fountain Filter Compatible with Catit Compatibility for Catit Fountain Filters – Our Fountain Filter is compatible with Catit Design Senses Fountain, Flower Fountain, Senses 2.0, and Fresh & Clear Stainless Steel Fountain (not compatible with Mini Fountain). Excellent Triple Filtration – The filter contains premium fiber cotton, activated carbon, and ion exchange resin, providing triple-action filtration to trap pet hair and food residue, remove impurities and particles, reduce heavy metals and odors, and soften tap water for clean, fresh drinking water. Upgraded Structure + Denser Filter Cotton – Increased filter surface area and optimized pore distribution improve water flow rate and filtration efficiency, helping maintain cleaner, fresher water. Supports Your Cat’s Health – By reducing odors, impurities, and mineral hardness, these filters help promote hydration and support urinary health. Regular Replacement Recommended – To minimize carbon dust, soak the filter in water for 5–10 minutes and rinse thoroughly under running water before first use. Replace every 1–2 weeks in summer and every 2–4 weeks in winter. For multi-cat households, replace more frequently.