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 91% of the chlorine in your water. The filter also reduces organic chemicals and enhances p H balance. This means that you'll be able to enjoy the health and cosmetic benefits of showering in clean water, like reduced asthma symptoms and softer skin and 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. You can use the shower head we provide or your own. The AQ-4100 comes with a 90-day satisfaction guarantee and one-year warranty. For a powerful water filter at a great price, think Aquasana: It means healthy water. Not Aquasauna, Aqua Sana or Aguasana. Made in the USA by Aquasana, Inc., a Texas Corporation.