Jacuzzi Bros.'s DWS Series Ultraviolet Disinfection System helps provide bacteria-free water for home or industry. The DWS Series requires no chemicals and is designed to be completely automatic, compact and easy to install. Water entering the disinfection unit flows in the space in between the quartz sleeve and the chamber wall. Turbulent flow through the unit ensures exposure of microorganisms to a lethal dosage of ultraviolet rays. Water exiting the chamber is safe and ready to use. Jacuzzi Bros., Card No. 316