Overview The Aqua Ultraviolet Classic Inline UV Sterilizer 15 Watt Black with a 3/4" barb connection is engineered for ponds, aquariums, and water features. Designed with a rugged construction for quick installation and easy maintenance, this UV sterilizer efficiently clears water in 3 to 5 days?sometimes even overnight?when sized, installed, and operated as directed. Key Features Dual-Function Performance: Sterilizer Mode: Effectively treats freshwater systems between 200-500 gallons (flow rate: 700 GPH at 30,000 µw/cm) and saltwater systems up to 75 gallons (flow rate: 233 GPH at 90,000 µw/cm). Clarifier Mode: Capable of clearing freshwater ponds up to 2,000 gallons. Rugged, Inline Design: The inline configuration with 3/4" barb fittings allows for seamless integration into your recirculation system. Rapid Water Clarity: Clears water in as little as 3 to 5 days, ensuring a healthy and vibrant aquatic environment. Easy Installation Maintenance: Engineered for straightforward setup and maintenance, ensuring reliable long-term performance. Guaranteed Performance: Achieves optimal water treatment when installed and operated according to Aqua Ultraviolet?s instructions. Product Specifications Wattage: 15 Watt Application: Freshwater Sterilization: 200-500 gallons at 700 GPH (30,000 µw/cm) Freshwater Clarification: Up to 2,000 gallons Saltwater Sterilization: Up to 75 gallons at 233 GPH (90,000 µw/cm) Connections: Inlet/Outlet: 3/4" barb fittings Color: Black Enhance your aquatic system?s water quality with the Aqua Ultraviolet Classic Inline UV Sterilizer 15 Watt?a reliable solution for effective water sterilization and clarification.