Aquasana Shower Filter AQ4100 \"It\'s like showering in natural springwater...\" Using patented filtration technology to remove chlorine, reduce synthetic chemicals and VOCs from your shower water and to balance pH, the Aquasana Shower Filter will give you the best shower experience possible... as close as you can come to showering in natural spring water. Shower in water the way mother nature intended, and your body will thank you for it.   Two Stage Filtration System Using natural filtration process to purify water The Aquasana Shower Filter uses a d...