Carbon filter for cat fountain: the cat fountain filter is designed to replace the pet fountain to keep the water flowing and fresh. Safety material: BPA-free, made from activated carbon, resin and non-woven fabric, a replacement cat fountain filter ensures that the water your cat drinks is safe enough. Keep your pet healthy: the carbon filter for cat water coolers can effectively filter hair, remove heavy metals and improve the taste of the water. Cat fountain filters: you'll receive premium cat fountain filters, individually wrapped and sealed to maintain high quality. Regular replacement: To ensure a better hydrophobic effect, the filter cartridge should be replaced once a month and cleaned with water before use. Specification: Name: Replacement filter for drinking fountain. Material: Non-woven fabric + coconut activated carbon + ion exchange resin Size:125*125*10mm List of packages: 8X Replacement filter for drinking fountain