Replacement Filter for Cat Fountain. Keep your cat's drinking water fresh, clean and safe. Help you take care of your cat's health. Features: Set of 12 filters. Individual size: 4.3" x 2.1". Made of activated carbon and cotton, which effectively filter water. Activated carbon helps eliminate residual chlorine and odors. Cotton is used to filter hair, dust, dirt and other contaminants. The water can be purified through filtering and ensures water quality and improves the taste of fresh water for your pets. Rinse the filter thoroughly with water before use and simply mount it on the pet drinking fountain. Compatible with Cat Mate and Dog Mate water fountains. Features: Item Name: Pet Water Fountain Filter Material: Plastic + Cotton + Activated Carbon Blue Color Single Size: 10.9 * 5.4cm Package Weight: 289g Package Size: 19 * 5 * 13cm Package List: 12 * Filters