Keep your cat's litter box clean and fresh with these replacement carbon filters. Designed for the Litter-Robot 3 Self-Cleaning Cat Litter Box, these filters help to remove odors and impurities from the air, leaving your home smelling clean and fresh. Made from high-quality materials, these filters are durable and long-lasting, making them the perfect choice for your feline friend. With six filters included in this pack, you can be sure to keep your cat's litter box clean and fresh for months to come.