Home » News » Filter Vials » Cheap PES hplc filter vials for sale whatman Whatman Puradisc 13 mm PES Syringe Filters, 0.45 µm, 50 Pack Whatman brand Puradisc syringe filters, PES, 13 mm diameter, 0.45 µm pore size, polypropylene housing, luer inlet/outlet connectors, 6780-1304, 50 pack. Common use PES hplc filter vials with pre-slit cap