... exposed to the 253.7nm light wave of UltraViolet C radiation. This machine is widely used in ... industrialized aquaculture (both in sea and in fresh water) and for sterilization of aquatic products, aquariums, swimming ... pools, civil and drinking water supply, hospital waste water and the water used in food industry,ect.Features: ... diameter can be tailored as required VG24 Ultraviolet Sterilizer