Pentair SMART 25W UV SterilizerThe SMART UV product line is very effective at reducing microorganisms in water using ultraviolet light. These high-quality UV sterilizers feature a watertight sealed design and can be used safely both indoors and outdoors. They are an excellent choice for everything from small koi ponds to large recirculating systems.SMART UV units have a 4″ diameter housing and 1.5″ slip union. Each model features low pressure lamps with a 9,000 hour effective life, as well as remote-style ballasts with 16′ power cords (10 cable to ballast and 6 cord). Units are 115V/230V 50/60Hz. UV vessels are built of a UV-resistant, high density polymer with a removable end cap to provide easy access. Internal viewing ports allow visual indication of lamp status.Includes a 1-year warranty on sterilizer ballasts, 3-year on housing due to UV damage and a 90-day warranty on lamps.Suggested Aquarium Size: 130gallons or lessMinimum Operational Flow Rate: 79GPHMaximum Operational Flow Rate: 788GPHSpecificationsMax Aquarium Size:130GallonsNumber of Lamps:1Algae & Bacteria Water Flow Rate:472GPH/788GPH (Suggested*/Maximum)Protozoa Bacteria Water Flow Rate:79GPH/131GPH (Suggested*/Maximum)Input Watts:25 wattsUV-C Output Watts:8 wattsUV Body Length:29″UV Body Diameter:3.5″Inlet/Outlet Size:1.5″ PVC Unions