Check the listing for details. Aqua Ultraviolet? Classic Series UV Clarifier/Sterilizer - 8W Unit in 8 Options. Condition: New. Listed at 270.10 USD. The Classic Series UV’s are ideal for ponds, aquariums, and water features. The Classic’s rugged design has features that allow for quick installation and easy maintenance. Aqua Ultraviolet UV’s will clear your water in 3 to 5 days sometimes overnight and keep it that way. Performance is guaranteed when sized, installed and operated according to our instructions. Used as a clarifier, the Classic 8 Watt will control green water in a freshwater environment of up to 1500 gallons that has 50% to 75% plant coverage and partial shade. A sterilizer will eliminate green water and control bacteria. The Classic 8 Watt will sterilize up to 200 gallons of fresh water or 70 gallons of salt water. SpecificationsInlet / Outlet Size3/4" and 2" OptionsPower Specifications110 Volts, 60 HzFeaturesBenefitsUnique Unit DesignAllows for maximum flow ratesLongest Lamp Life on the MarketReplace lamps less often, and therefore with less costHighest Quality Quartz Lamp SleeveAllows for a 99.9% transmission rateClear Quartz CapMakes it easy to see whether UV lamp is onEZ Twist CapQuick and easy quartz sleeve maintenanceQuick Release TeeEasy installation and maintenanceOptional WiperCleans quartz sleeve for optimal UV transmission