Details PTFE Unlaminated Membrane Filters, Hydrophilic, 0.2 Micron, 13mm, 100/Pk (H020A013A) Summary of Features: Maximum chemical and pH resistance High flow rates with minimal aqueous extractables (<0.3wt%) Optically clear when wet with water Unlaminated Ideal for HPLC and other mixtures of aqueous and organic solvents Applications: