SunSun CUV-236 36W UV Light Sterilizer Pond Water Clarifier Power: 36W Suitable for pond sizes up to 11880 gallon For use with pumps up to 1585gph Lenght: 54cm / 21.3" Voltage: 110-120V 36W UV Bulb Included Suitable for Marine and Freshwater Separate Ground-glass Viewport Included to Replace a Hosetail if One-in / One-out use Required