1.Filter core:High qualight UV light. 2.Material shell:Stainless Steel 304L 3.Easy installation 4.Long life Addlinn UV light water filter:L5 use for:Drinking water disinfection, tap water, pure water; Food and beverage water, industrial process water; Swimming pool and spa, scenery water, irrigation water; Waste water disinfection; Cooling tower and RO system +High efficient sterilization: ...