Aqua UV Sterilizer Unit 40 Watt - White

40 Watt Aqua U.V. - White - As a sterilizer: Maximum flow rate: 2900 GPH. 1200-2000 Gallons size. As a clarifier: Maximum flow rate: 3000 GPH, up to 6000 Gallons size which may require 50% to 75% plant coverage. For salt water applications: 200 gallons. Water flow rates are based on end of lamp life at 14 months. 3/4" INLET/OUTLET, 1 LAMP. Unit: 43" X 4" X 2-1/2". 7 LBS. OPTIONS: White, 3" INLET/OUTLET, 24 K Gold tip, wiper Ultraviolet Sterilization is a proven, dependable and effective method for controlling and eradicating algae spores present in the water source.