Ultraviolet Light Water Purifier Reverse Osmosis UV Sterilizer 1 GPM Extra Bulb 1 GPM UV Ultraviolet Sterilizer Water Filtration Unit Add this to your drinking water system for exta protection. This system is good to kill harmful Bacteria, E Coli, Viruses Fungi, Algae and most microorganisms including cryptosporidium, giardia and many other contaminants. Inlet / Outlet: 1/4" Quick Connect Length: 12" UV lamp: 6W Voltage:110v UV Lamp Life: 9000 hours (about 1 year) Total Of 2 UV Lamps Complete System with Mounting Clamps, Glass Tube and UV Bulb Plus 1 FREE Replacement Bulb