Specialty Products. Whatman Nuclepore Hydrophilic Membrane, 0.2 µm Pore Size, 47 mm Circle, 100 Pack, 10417012. Regular Price $196.70 Price $171.05. Add to Cart. Whatman 6874-1302 GD/X 13 mm Syringe Filter, PTFE filtration medium, 0.2 um (150 pcs) Regular Price $487.28 Price $423.72. Add to Cart.