Designed to make a good shower even better, Culligans white In-Line Shower Filter reduces chlorine, sulfur odor, and scale. The Culligan ISH-100 provides softer, cleaner skin and hair. The filter attaches easily to your existing standard -inch shower arm at one end and then to the existing showerhead at the other, without affecting the height or position of the showerhead. The filter is easy to install with no tools required. The filter life is up to 6 months or 10,000 gallons. The package includes one ISH-100 Shower Filter, WHR-140 cartridge, Teflon Tape. A better shower always begins with better water!