HIGH COMPATIBILITY: Replacement for 2.5L Stainless Steel Fountain and 2L Colorful LED Colorful Cat Water Fountain. Before purchasing, please measure your cat water fountain and the original filter of the water fountain filter to confirm whether the filter is suitable. The package contains 4 carbon filters carbon filters. Triple Effective Cleaning: Each filter consists of a layer of cotton, activated carbon, coconut shell and an ion exchange resin with ABS grids. It can effectively remove impurities, filter hair, odor, soften water and let your pet drink clean water. Timely Replacement To ensure clean water, the filter needs to be replaced in time. Please replace it within 2 to 4 weeks. Easy to use: Soak the cat fountain filter with water thoroughly before use. Then insert the cat fountain filter into the water dispenser. 100% guaranteed water quality.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it