The SHFM-140 Model is a 143 GPM high flow multi-lamp commercial UV disinfection system with state of the art UV sensor technology that renders chlorine-resistant parasites, bacteria and viruses harmless. The UV sensor continuously monitors UV performance for added peace of mind. This four lamp system features a seperate control panel with high visibility components, stainless steel chamber, and 120 AC voltage. 230v is available upon request.