SUN CUV-136 Aquarium UV Clarifier Power: 36W Suitable for pond sizes up to 9250 gallon For use with pumps up to 1188gph Lenght: 49cm / 19.1" Voltage: 110-120V 36W UV Bulb Included Three Stepped Hosetails Supplied Separate Ground-glass Viewport Included to Replace a Hosetail if One-in / One-out use Required Wall Mounting Bracket Attached to the UV Light complete with Screws Easy Unscrew-release for Bulb / Quartz Glass Maintenance Suitable for Marine and Freshwater