Laguna Pressure-Flo 700 UVC Filter High performance water filtering system that keeps pond water clear and healthy Can be Installed in or above ground; 16-foot long power cord Includes 11-watt UV lamp and foam media Clogging indicator tells you when cleaning is required Water flow of 333 gallons per hour when high load of fish in sunlight; Water flow of 660 gallons per hour when low load of fish in shade