Ensure your pet stays hydrated with the PawHut Cat Water Fountain Filter 16-pack. Designed to promote optimal urinary health, these filters feature a high-performance triple-action system using activated carbon and ion-exchange resin. This advanced filtration effectively softens water, removes unpleasant odors, and traps debris that can compromise your pet's drinking water quality. By actively reducing calcium and magnesium levels, these filters help mitigate health risks associated with hard water minerals. Each of the sixteen filters is individually sealed to maintain hygiene and freshness, providing you with a long-lasting supply and excellent value. These filters are compatible with standard pet fountains and offer a simple, effective solution for maintaining a clean and healthy water source for your cats. Product Summary: PawHut replacement filters, 16-pack cat water fountain filters, triple-action water filtration for pets, pet fountain filter refills for urinary health.