string wound water filter cartridge 1.precise:1,5,10,20,25,30,50,75,100micron 2with pure materials for filter cartridge string wound yarn filter cartridge 1.Brief Account: Wound cartridges provides true depth filtration,high dirt holding capacity,and extremely low media migration.Are available in a wide variety of lengths and porosities.Especially signigicant is the availability of filters in an ...