[QUANTITY & QUALITY IMPROVED ] premium fountain filters with 40% more activated carbons than most filters on the market to achieve better purifying performance. [SCOPE OF APPLICATION] Replacement water fountain filters compatible with pet fountains. [PURIFYING PERFORMANCE] Filter hair and residue, absorb odors and soften water, get better water tasting to encourage pets to drink more and stay healthy. [NOTE] To help prevent the charcoal dust from shedding, please rinse filters with water thoroughly before use, providing the clean water for cats and dogs. Designed for drinking fountain. High quality activated carbon filters keep water clean and fresh, encourage pets to drink more. Suggest : 1.Replacing Charcoal filters every 2 to 4 weeks to keep the water clean. 2.Replace more frequently if multiple pets using the fountain, rinse filter with water thoroughly before use. 3.A small amount of carbon dust may be released for the life of filter which is not harmful to your pet. colour:white Material:Activated carbon 125mm in diameter Thickness 10mm Package Contents: 6* Carbon Replacement filters Only the above package content, other products are not included. Note: Light reflection 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.