Clearwater is one of the oldest manufacturers of Salt Water Chlorinator in the world.  They are manufactured in Australia.  The are now owned by Zodiac Pool Systems.  They manufacture manual Clean systems and self cleaning systems.  The new LM3 series debuted in 2006.  Zodiac Also owns Polaris and Jandy.

Salt Levels  -   Manual Clean =  4000 ppm                 Self Cleaning = 3200 ppm