Compatibility: Replacement filter is compatible with E versweet 2S/3/3 Pro,E versweet Solo/Solo SE cat water fountain.
Contains: 10 packs of replacement filters and 10 packs of replacement foam filter.
Muti-layer Filtration System: The petkit filter is assembled from activated carbon, ion exchange resin, non-woven fabric and pre-filter. They effectively filter out hair, impurities, odor, and food residue, to ensure your pets always drink the fresh water.
Tips: Before replacing the petkit pet water fountain filter, please rinse and soak the filter into water for 5 minutes. This helps the filter to function fully.
Depending on the frequency of use, it is recommended to replace the fountain filter for 2-3 weeks. If you have multiple pets, it is recommended to clean the fountain and change the filter more often.