["Brand new and high quality.\nFeatures:\n1/The filters are especially designed for many brands of for cat water fountain.\n2/Composed of a cotton layer,activated carbon and an ion exchange resin.They can filter hair, heavy metals, and improve the taste of the water so that pets can drink clean and for fresh water, more healthier than other only have two filter materials.\n3/Our for cat fountain filters provide clean, for fresh water to your pet, which helps to increase water consumption and reduce the risk of urinary tract infections.\n4/To prevent the activated carbon dust from shedding into water, please soak the filter in water for 2 minutes,then rinse thoroughly under running water before using. 1 to 2 weeks in summer and 2 to 4 weeks in winter.If multiple cats are using the fountain, more frequent replacement will be necessary.\n\nSpecification:\nType: for Cat Fountain Filter \nMaterial: Negative Ions and Active Carbon,\nColor: As Show\nSize: app.diameter 13.2cm/5.20in\nQuantity: 4Pcs/Pack; 6Pcs/Pack; 8Pcs/Pack; 12Pcs/Pack\nNote: \nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n4/6/8/12 Pcs/Pack x for Cat Fountain Filter"]