The OSEC B Series systems are of tubular design and provide production of sodium hypochlorite solution from salt, water and electricity. This eliminates dependence on commercial chlorine suppliers and the problems inherent in the transport and handling of bulk hypochlorite. Additionally, OSEC systems can significantly lower operating costs, as well as disinfection by-products compared to the use of bulk hypochlorite. Operation is completely automatic, making the OSEC B Series systems ideally suited for remote or unmanned locations.