This is the neatest little unit. Cobia stands for Chlorine On Board Integrated Automation. What that means is not only is it a great little cleaner but it has a salt generator onboard to produce chlorine. With salt pools increasing in popularity, this cleaner has more of a capability than what it was intended for. Its only limitation is it is designed for pools up to 20,000 gallons. What I see is not only a unit that provides excellent robotic cleaning but also can be added to a pool where the salt generator system was not large enough to handle the capacity of water in a pool and instead of adding an additional salt generator, you just simply install the cleaner and let it make chlorine in addition to the main unit. In those instances, it could be installed in a pool larger than 20,000 gallons to supplement the chlorine demand of a large pool. The expected cell life is 2 years or 8000 hours of operation. It also comes with a two-year/300-cycle warranty on the main unit.