General description Our Cat Water Fountain Filter set includes 12 carbon filters and 12 foam sponges, designed to provide clean and fresh water for your pets. The filters are compatible with 2L, 3.2L, and 4L stainless steel cat water fountain models, ensuring a perfect fit. With our filters, you can trust that you are using a high-quality product from the original manufacturer. Technical specifications Package includes: 12 carbon filters and 12 foam sponges Filtration system: Triple filtration with activated carbon and high-quality cotton Compatibility and accessories Compatible with 2L, 3.2L, and 4L stainless steel cat water fountain models Usage Replace the carbon filter every 4 weeks Replace the activated carbon filter every two weeks Replace the foam filter every two months Soak the filter in water for 5 minutes before use and rinse thoroughly to prevent activated carbon dust