A UV unit is used to kill floating algae, floating bacteria and parasites, resulting in clearer water. Killing parasites is very important in a (marine) aquarium with sensitive fish. Think of doctor fish in a marine aquarium. These fish are very sensitive to parasites when stressed. When you reduce parasites by means of a UV unit, the risk of contamination of the fish is much lower. UVC light creates clear water / free from floating algae Safe and effectively eliminates pathogens and unwanted bactria and parasites (through UVC radiation) Easy to assemble Can be combined with all filters on the market. Model Wattage Pond water volume Aquarium water volume Voltage Length(mm) mmØ Connections(mm) AU-7 7 3500 100-200 220-240v50Hz/120v60Hz 323 Ø72 Ø20/25 AU-9 9 4500 200-300 220-240v50Hz/120v60Hz 323 Ø72 Ø20/25 AU-11 11 5500 300-400 220-240v50Hz/120v60Hz 323 Ø72 Ø20/25 CW-18 18 8000 400-500 220-240v50Hz/120v60Hz 332
