UV Water Purifier Whole House Ultraviolet Light Sterilizer 12 GPM for Bacteria POWERFUL & RELIABLE: 55W Whole House 12 GPM UV Ultraviolet Sterilizer Water Filtration Unit SAFE: This system is good to kill harmful Bacteria, EColi, Viruses Fungi, Algae & Microbes STRONG: Stainless Steel Unit Capacity: 12 GPM Inlet/Outlet: 3/4" NPT 36" UV lamp: 55W 110V COMPLETE SYSTEM with Mounting Clamps, Glass Tube and UV Bulb LONG LASTING: UV Bulb Change Times: 1 Year