PP melt blown cartridge filter: (1)Size:10",20",30",40" ... " (4)OD:63+/-1 PP melt blown cartridge filter made from nonpoisonous and tasteless polypropylene particle.Main ... characteristics: High filter precision,large flow & slight pressure difference,high ... .015 MPa, the 10 "norm filter accuracy when the flow of the value. PP melt blown cartridge filter