01 05. pore size 0.2um PTFE syringe filter Pall. Whatman Membranes – 0.05um – 0.2um – 1.0um – 1um – 47MM Whatman Nuclepore Polycarbonate Black Membrane Filter, 0.2 µm Pore Size, 47 mm Circle, 100 Pack, 111156 Regular Price $188.37 Price $163.59 Add to Cart Add to Wish List Whatman Nuclepore Hydrophilic Membrane, 1.0 ValuPrep