[Compatibility: Exclusively designed for our DCIOGAT 75oz/2.2L automatic cat water fountain. Product Details: Includes 8 carbon filters and 8 sponge filters. Made of high-density sponge filter activated carbon and ion exchange resin to build a perfect filtration system. Efficient Filtration System: With a multi-stage filtration system the high-quality filter in the cat water fountain functions efficiently by eliminating impurities purifying water and eradicating odors providing your cat with clean and fresh drinking water. Tips for Care and Usage: To maintain the effectiveness of the filtration it is advised to clean the filter once a week and replace it every 2 weeks. Before using make sure to soak or rinse them in cleaning water for 5 minutes. Please note that the filter should be installed with the white side up.]