... "x17" PP/PE needle Felt Filter Bags1).Nominal micron filter bags (#1,#2,#3, ) 2).Absolute micron filter bags.(#1,#2,#3, ) 3 ... ,#2,#3, ) 7).Activated carbon filter bag.(#1,#2,#3, ) 8).Pleated Media filter bags.(#1,#2,#3, )Micron Rated Liquid ... Filter BagsModel: A-B-C-D-E-F ...