- The package includes: Sponge filters for cat drinking fountains, sufficient quantity can meet your use and replacement needs, providing clean drinking water for your pets 2. Quality material: the cat fountain filter is made of sponge, provides nice pet water fountain filtration, brings clean and fresh water to your pets, which makes your pets willing to drink more water 3. Filter Impurities: The cat drinking fountain sponge filter can filter impurities well, capture pet hair and debris, ensure every drop of water is healthy, make water cleaner and fresher and prolong the life of the pump 4. Warm tips: The cat fountain sponge filter is not suitable for repeated use; Since the filtered impurities will remain on the sponge, it is more appropriate to replace the sponge filter every 2-3 weeksColor: Black Material: Sponge Package Content: 16 x Sponge Filter See the above package contents, other products are not included. Remark: Light shooting and different displays may cause the color