The newest innovation from Aqua Ultraviolet features ultraviolet clarifiers that add quality and value to any pond or aquarium. One piece molded body with 3/4" barbs molded to the unit. A non-submersible UV that is very easy to install for any water feature or aquarium. For ponds, the Advantage 2000 is a wonderful addition. Rid your pond of green water. The Advantage 2000 will handle effective pond volumes of up to 1500 gallons in full shade. The 2000 + handles effective pond volumes of up to 2000 gallons in full shade. Please see complete details below. Backed by Aqua Ultraviolet and featuring our high-output, long life lamps for up to 14 months of trouble-free service. The Advantage 2000 & 2000 + are a great tool for controlling outbreaks in your fresh or salt water aquariums and the Advantage series is so easy to install. That's all it takes, and you can provide your fish with a year-round safe environment. This product will not eliminate blanketweed/string algae. Not for use in swimming pools or salt water.