The Blu Ionic Nano Metal Cluster Power Filter Refill Cartridges come in a pack of 3 replacement filters designed for water purification systems. These NMC filter cartridges utilize advanced ionic and nano metal cluster technology for effective water filtration. Key features: • Pack of 3 replacement cartridges • NMC (Nano Metal Cluster) filtration technology • Compatible with Blu Ionic Power Filter systems • Easy to install design • Long-lasting performance These replacement cartridges are specifically designed to work with the Blu Ionic Power Filter system. The NMC technology helps remove impurities and contaminants from water through an advanced filtration process. Regular replacement of these cartridges helps maintain optimal water quality and system performance.