Whatman GD/X syringe filters Nylon membrane, pore size 0.45 um, diam. 13 mm, non-sterile, pkg of 150 ea Whatman filter
MCE Gridded Membrane Filter, Sterile Individually Packed, Pore Size of 0.45um, Membrane Diameter of 47mm, Sterile Membrane Filter with Hydrophilic MCE Membrane Pack of 100 pcs by Alberts Filter : Amazon.in: Home