[20-STAGE FILTRATION]-Shower filter includes KDF 55, alkaline ceramic ball, activated carbon, calcium sulfate and other 20-layer filter materials. It can effectively reduce impurities such as chlorine and heavy metals and remove odors. Ensure optimal water purification. [WIDELY COMPATIBLE] - Our shower water filter are of the standard G1/2 thread type and are suitable for most wall mounted, handheld, rain shower and combination shower heads. Water plating surface hardness is higher, beautiful and scratch-resistant. [ADDITIONAL FILTER & STABLE WATER PRESSURE]- Shower head filter contains a total of 2 filters (one of which is installed). The high output shower head filter for hard water ensures a strong and steady flow of water so you can enjoy a relaxing shower experience. [HEALTHY SHOWER]- Shower filter head for hard water can care for skin, protect hair health, suitable for sensitive people. Note: Please run water for 5-10 minutes for the first time to remove accumulated carbon dust. [EASY INSTALLATION]- Simply open the housing of the shower water filter, remove the old one and replace it with a new one.