... ,90,142,293Item#DescriptionPcs per boxMFPVDF013022PVDF Membrane Filter, Pore: 0.22(μm), Diameter: 13(mm)800MFPVDF025022PVDF Membrane Filter, Pore: 0.22(μm), Diameter: 25 ... .22(μm), Diameter: 90(mm)200MFPVDF142022PVDF Membrane Filter, Pore: 0.22(μm), Diameter: 142(mm)100MFPVDF293022PVDF Membrane Filter, Pore: 0.22(μm), Diameter: 293 ...