The SHFM-140 offers outstanding multi-lamp performance for commercial applications, with flow rates up to 143 gpm (540 lpm). Benefits: Ease of Maintenance: The control panel allows for quick accessibility to the controllers with visibility to the components and power isolation Reliable: High-performance UV lamps, rigorously tested to provide consistent output over the entire lamp life (9000 hours) State of the art UV sensor technology to give you real-time performance feedback, for added peace of mind Convenient: Features countdown timer with digital display and audible lamp change reminder for ease of maintenance Durable: The high-quality 316L SS chamber provides long-term reliability Application: Perfect for a wide range of commercial applications including, small businesses, hospitals, dentist offices, etc. Includes: UV Sensor, control panel (enclosure) The SHFM-140 inactivates the following microorganisms: Cryptosporidium, Giardia, E.Coli and Fecal Coliform.