PES Syringe Filter Diameter: 33mm, 0.22um pore size can fast sterilization of buffers, culture media or other solutions. 1 of Autosampler Vials, Membrane Solutions 2ml HPLC Vials, 9-425 Lab Amber Vials with Write-on Spot and Graduations, 9mm Blue ABS Screw Caps & Septa for GC Sample Vials, 100 Pcs