[Compatibility: Cat Water Fountain filters are compatible with 84oz/2.5L Fursink Wireless Pet Water Fountain.Cat Water Fountain Model DPWFP6 Cartridge Filtration Systems: The replacement filter has a multi-layer filtration system.High density cotton can Stop hairs and debris;Activated carbon can remove bad taste and odor;Filtration stone can remove heavy metals and release trace elements;Ion exchange resin can soften the tap water "Pump pre-filter sponge: The water pumps high-density pre-filter sponge helps to remove fine particles and filter impurities preventing fine particles and impurities from entering the pump and helping to extend the life of the pump" Tips for use: Soak the filter in water for 5 minutes before use then rinse under running water for 15 seconds. This guard against carbon dust from falling into the water keeping it clean and fresh Regular filter changes: In order to maintain the filtration effect please replace the filter and sponge once every 2-4 weeks; If you keep more than one pet the cleaning of the pet fountain and the replacement of the filter need to be increased]
