... Filter,Water Purification,Water Filters,personal water purifier,outdoor water life straw. Item No: SWA-1Size:250*27MMWeight:90GPackage:1pcs/color ... .5CMG.N/W:10/9KGPersonal Field Drinking Pipe (Outdoor Life Straw)Active Ingredient 1.Reactive halogen resin to kill bacteria and virus ... ,only 15 microns which filters out clusters of bacteria.Shelf Life 3 years when stored in shade ,no more than30°CSpecial ...