The Aquasana shower filter helps your family enjoy bathing in filtered water with a simple attachment to your shower line that you can install in minutes. Our unique two-stage shower filter system uses a combination of copper-zinc oxidation media and coconut shell carbon to reduce over 90% of the chlorine in your water. The filter also reduces organic chemicals and enhances pH balance. This means that you"ll be able to enjoy the health and cosmetic benefits of showering in clean water, like reduced asthma symptoms, softer skin and healthier hair. Aquasana replacement shower filters last six months or 10,000 gallons, so a healthy shower can cost you as little as 25 a day with our no-contract replacement filter auto-ship program, Water for Life. The AQ-4100NSH comes with a one-year warranty.