Keep your pet's water clean and fresh with these replacement filters for cat fountains. Made of activated carbon, cotton, and resin, these filters effectively remove hair and heavy metals from the water, ensuring your cat drinks clean water. The pack includes 12 filters and 12 sponges, making it perfect for multiple cats or for replacing old filters. These filters are CE externally tested and have a product dimension of 1"D x 1.1"W x 1.5"H, weighing 3.2 ounces. The Porens brand ensures quality and reliability, making it a great addition to your pet's water fountain. Give your cat the best by adding these replacement filters to their water fountain.