Usage Tips:Quantity: 12 Pieces Color: White Size: 11.3*4.3*1cm Material: Cotton, Charcoal Product Description: Highly Effective Filter: The replaceable activated carbon water filter keeps your pet's water clean by removing bad tastes and odors from the water and keeping it fresh. Secured Filtration: The replaceable activated carbon water filter improves the taste of the water so that pets can drink clean and fresh water, more healthier than others only having two filter materials. Fountain Accessories: Our Cat Water Fountain Filter is a must-have accessory for your pet's fountain. Own it and provide a healthy environment for your beloved pet. Fast to Install: It is fast to assemble and replace the Cat Water Fountain Filter. Be aware to check out your cat fountain and whether the filters match. Helpful for your Pets: The Pet Fountain Replacement Filters are greatly helpful and encourage pets to increase water consumption and reduce the risk of urinary tract .