Set of 8 cat water fountain filters + 8 sponge filters, 10.5cm activated carbon and replacement resin for 2L/2.5L pet fountains - Triple filtration system

Triple filtration for healthier water: Each filter combines a layer of cotton, activated carbon, and ion-exchange resin to effectively remove hair, debris, odors, and harmful substances, keeping your pet's water fresh and clean. Additional sponge filters for pump protection: Includes 8 black sponge pre-filters to trap pet hair and food debris before they reach the pump, extending pump life and improving water flow. Easy to use and replace: Soak the filters for 2-3 minutes before use. Replace the carbon filters every 2-4 weeks and the sponge filters every 4-8 weeks, depending on water quality and pet usage.