The MISFANS Cat Water Fountain Replacement Filters are the perfect addition to ceramic pet water dispensers, delivering cleaner, fresher, and more enjoyable water for your feline friend. These innovative filters feature multi-layer activated carbon filtration, perfect for removing unpleasant odors and impurities. The recommended change interval is every 1-2 weeks, ensuring optimal performance and water quality. The 8+8 pack ensures you'll always have a fresh supply on hand, making it easy to keep your pet hydrated and healthy.