Internal current helix tube with protection device inside Indicator screen design Internal ballast 243mm x 77mm

This equipment can kill the harmful germ and algae in the aquarium and the pond which coffer the healthy environment to the fishes. When the water under the irradiation of wavelength in 253.7nm's ultraviolet radiation in a short period, the germ and pathogen in the water will be killed then. This equipment not match with the water pump by itself, please buy it separately.