Product Introduction: Shower water filter replacement cartridges; For 1 person, it is expected to use 32.5 gal (100 L) per day (about 13 minutes) for 12 months; A water filter cartridge using "fiber activated carbon" that quickly absorbs harmful substances and "coconut glass activated carbon" that absorbs more harmful substances. By adopting the "membrane filtration method" which utilizes all the advantages, you can remove not only residual chlorine but also the smell of water and dirt from the pipe. [Mountable main unit] JS211-W JOWER; JS214-W JOWER silk; HV-206SB-B Skin Beauty III; HV-97SB Newskin Beauty Shower [Discontinued] [How to use] (1) Turn the head of the shower head off (2) Pull out the used cartridge and insert a new cartridge. (3) Turn the head of the shower head to tighten it. In that case, make sure to align the alignment marks on the head and the grip markings.