Water filter cartridge: (1)Size:10", 20",30", ... 330+10g for 30" (4)OD:63+/-1mm water filter cartridgemade 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. water filter cartridge