Ewilibe Drinking fountain activated carbon filter replacement filter for cats and dogs In the world of cats, running water is cleaner and tastier. Clean water is inextricably linked to filtration. The activated carbon filter is essential. The Ewilibe activated carbon filter purifies the water quality, thoroughly removes hair, dirt and debris, and removes odors, protects the cat’s health, increases the amount of water the cat drinks and prevents the cat to drink less water to affect the cat’s health. The activated carbon filter traps hair and dirt, which keeps the pump running smoothly. Material: Activated carbon, cotton, ABS, coconut shell particles, ion exchange resin Scope of delivery: 4 x replacement fountain filters Correct installation < /h4> Please insert the filter correctly. Rinse the filter well before use Please rinse with water before using this cat fountain filter, then install it on the water fountain. Tips To keep the water clean, please replace the filter within 2-4