Wide Compatibility: This pet water dispenser filter, fountain filter is suitable for fountains.Double-effect filter: The use of ion exchange resin and activated carbon double-effect soft water filter can effectively filter dirt.Design: Unique design removes impurities and provides only fresh water for your cat.EASY TO USE: Rinse the filter with water before use and every 2-4 weeks to keep the water fresh.Healthy drinking water: The water dispenser filters reverse osmosis, blocks impurities in the water in layers, removes heavy metal elements, reduces water quality, softens the water, and effectively prevents the urinary system of animals.Packing: 12* filter elementSize: 13.5cm * 13.5cm * 4cmNote: Due to the different pictures displayed, the actual color shall prevail. Dimensions are measured by hand, there may be errors (1-2 cm).