Whatman Nuclepore Hydrophilic Membrane, 0.2 µm Pore Size, 142 mm Circle, 25 Pack, 112106. Regular Price $352.37 Price $306.00. Add to Cart. Add to Wish List. Whatman Nuclepore Hydrophilic Membrane, 0.2 µm Pore Size, 8 x 10 in sheet, 25 Pack, 10417050. Regular Price $738.69 Price $641.49.