Titanium electrolytic cell uses environmentally friendly natural salt to create chlorine. Soft, fresh, clean water without the potential harsh side effects of packaged pool chemicals. Electro catalytic oxidation splits water molecules into highly powerful oxidants that destroy organic contaminants such as bacteria and algae. Redesigned sleek compact casing and control panel for easy use. Requires a pump with a flow rate between 700 and 3000 gph.