Aqua UV Twist Classic 40 Watt UV Sterilizer 2 Inch

The Classic Series UV’s are ideal for ponds, aquariums, and water features. The Classic’s rugged design has features that allow for quick installation and easy maintenance. Aqua Ultraviolet UV’s will clear your water in 3 to 5 days sometimes overnight and keep it that way. Performance is guaranteed when sized, installed and operated according to our instructions.

Recommended Flow Rate for UV Dosages
at 30,000 µw/cm2 (EOL) GPH: 2,900 (Max Flow Rate)
at 45,000 µw/cm2 (EOL) GPH: 1,930
at 60,000 µw/cm2 (EOL) GPH: 1,450
at 75,000 µw/cm2 (EOL) GPH: 1,160
at 90,000 µw/cm2 (EOL) GPH: 967 (Min Flow Rate)

Information for Reef Tanks
A UV rated in the 30,000 or 45,000 µw/cm2 (EOL) is ideal for the reef environment. UV’s used at higher kill rates will destroy the planktonic food supply for the reef.

Information for Marine Fish
(No reef or live rock) A UV rated in the 75,000 or 90,000 µw/cm2 (EOL) will be the most effective at controlling fish disease. All UV dosages are calculated at the end of lamp life (14 months).