The Zoom High-Quality Filter Cartridge provides comprehensive water filtration for one year. It consists of PP cartridges in the first stage to remove large impurities, UDF cartridges in the second stage to remove chemicals, CTO cartridges in the third stage to improve taste and odor, and an RO (Reverse Osmosis) filter in the fifth stage to remove heavy metals and fine particles. It is followed by a PC filter in the sixth stage to enhance taste, and finally a Mineral Salts filter in the seventh stage to add essential minerals. The system ensures pure, healthy water for daily use.