Syringe Filter, Nylon, 25mm diameter, 0.2um, 10 - amazon.com
LabZhang 24pcs Syringe Filter,Syringe Lab Filters,Hydrophilic Nylon Membrane 25mm Diameter 0.22um Pore Size,Non Sterile Filtration,Green(nylon-25mm 0.22um) 4.3 out of 5 stars 52 1 offer from $12.99