Home » News » Filter Vials » Standard 0.45um filter vials distributor separa Standard 0.45um filter vials distributor separa Whatman Membranes, 0.45uM, Product Diameter: 0.45uM Whatman 7141-204 Mixed Cellulose Ester Circle WME Range, gridded, white/black grid 3.1 mm, autoclave pack, 0.45 um pore size, 47 mm, 100 per pack