Apr 4, 2017 · This item: Sterile Syringe Filters PES 25 mm Diameter 0.22 um Pore Size Individually Packaged 10/pk by Biomed Scientific. $12.99 ($1.30/Item) In Stock. Sold by Biomed Scientific and ships from Amazon Fulfillment. Get it as soon as Sunday, Feb 26. 10 Pack Syringe Filter Sterile PES Hydrophilic Filtration Pore Size, 33mm.