... Pore Size: 0.22um, 0.45um Diameter: 13mm,25mm,33mm Syringes filter/Membrane filter/HPLC filter/ Lab filterFeature & Benefit A. ... denotine, filter material,and pore sizeE. Manufactured in a 100,000 clean room in a ISO certified plantSpecification A. ... Sterilized Filtration ClarificationParticle Removal Filtration Gas Sterilized Filtratio33 Syringes filter/Membrane filter/HPLC filter/ Lab filter