The 6 Pack Catit Flower Fountain Water Filter Replacement Cartridges by Pet Standard are specifically designed for the Catit Flower Fountain Water Fountain. Made in Vietnam, these Fountain Softening Filters are essential for keeping your cat's water clean and fresh. Easy to install and providing a reliable filtering system, these cartridges ensure your feline friend always has access to safe and healthy drinking water. Perfect for cat owners looking to maintain their pet's hydration needs with a trusted solution.