7"x17" PP/PE needle Felt Filter Bags 1.Material:Needle felt PP,PE 2.Welding or Sewing 3.Plastic ... Ring 4.Size, 7"x17" PP/PE needle Felt Filter Bags were made by PP,PE,Nylon,Nomex and Oil ... vesse together. 7"x17" PP/PE needle Felt Filter Bags1).Nominal micron filter bags (#1,#2,#3, ) 2).Absolute ... bag.(#1,#2,#3, ) 8).Pleated Media filter bags.(#1,#2,#3, )Micron Rated Liquid Filter BagsModel: ...