Aquasana AQ-4100 Deluxe Shower Water Filter System with Adjustable Showerhead Shower only in pristine water - coconut shell carbon and copper zinc mix reduce chlorine, lead, mercury, iron, hydrogen sulfide, pesticides, herbicides, and other volatile organic compounds. Gentle on your skin and hair. Reduce harsh cholorines and other chemicals for softer, more moisturized skin and shinier, healthier hair. Breathe easy - removes chlorine and other breathable chemicals from your shower steam for better quality air while you shower. Customize your shower experience. The premium massaging shower head has multiple massage settings. Keep water pressure strong with Aquasana's unique up-flow design. One of the longest lasting filters on the market - 10,000 gallons or six months of fresh water. Replacements are a simple twist  no tools required.