1. Package includes: Sponge filters for cat drinking fountains, sufficient quantity can meet your use and replacement needs, providing clean drinking for your pets2. Quality material: the cat fountain filter is made of sponge, offers nice filtration to the pet fountain, brings clean and fresh to your pets, making your pets be willing to drink more water3. Filter impurities: the cat drinking fountain sponge filter can filter impurities well, capture pet's hair and debris, ensure that every drop of is healthy, make the cleaner and fresher, and extend the service life of the pump4. 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 suitable to replace the sponge filter every 23 weeksColour: BlackMaterial: spongePackage Contents:16 x Sponge FilterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/ 13cm.