?Wide Compatibility?Cat water fountain filter is designed compatible with Rellaty 3.2L/108oz Pet Water Fountain. Package includes 8 pack of cat fountain replacement filters and 8 pack of pre-fliter sponges. They are individually packaged and sealed to maintain high quality. | ?Quadruple Filtration System?The carbon filter features a triple filtration system that includes a cotton layer, activated carbon, and ion resin, which helps to remove odor, soften water, and improve the taste and quality of your pet's drinking water. Meanwhile, the pre-filter sponge captures pet hair, dirt, and food particles, providing your pet with pure and healthy water. | ?Improve Your Pet's Health?Providing your cat with fresh, clean water can improve their health and well-being. Our cat water fountain encourages your furriend to drink more water, which can prevent dehydration and urinary tract infections. Give your pet the gift of health with our dog water fountain and filters now! | ?Usage Recommendations?To prevent the activated carbon dust (which will not harm your pets), please soak the filter in a separate bowl for 5 minutes and rinse it for 30 seconds before use. According to your pet's drinking frequency and the number of pets using the fountain, please change the filter and cleaning the pump and fountain every 1-2 weeks. | ?24/7 Customer Service?Please know that, Rellaty offers a 24/7 friendly customer service. Whenever you have a problem, please feel free to contact us.