1. 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, offers nice filtration to the pet water fountain, brings clean and fresh water to your pets, making your pets be willing to drink more water 3. Filter impurities: the cat drinking fountain sponge filter can filter impurities well, capture pets hair and debris, ensure that every drop of water is healthy, make the water cleaner and fresher, and extend the service 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 suitable to replace the sponge filter every 2-3 weeks Colour: Black Material: sponge Package Contents: 16 x Sponge Filter Only the above package content, other products are not included. Note: Light 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 +/- 1-3cm.