1. HEALTH CARE SHOWER SYSTEM: Our cartridge has 15 stages of filtration for reducing chlorine, heavy metals, fluoride, lime and scale in water. 2. WATER PURIFIER: Requires replacement once in 4-6 months (~ 10 000 gallons) depending on water quality and frequency of use. Suitable for the whole family, and there is no need to worry about frequent shower cartridge replacement. 3. REVITALIZING BODY: Helps reduce dry skin and dandruff, and cares for the skin, hair, and nails. 4. UNIQUE, SCIENTIFICALLY FORMULATED: This bath filter does not contain cheap carbon and calcium sulfate that may clog the flow and stop working quickly. It features a unique, scientifically formulated blend for longer lasting and maximum filtration in both hot and cold water. 5. EASY REPLACEMENT: No tools are required for replacement. Just open the housing of the shower cartridge filter, take out the old one and replace it with a new one.