Millex-GP Filter for Samplicity G2, 0.22 µm, PES 33 mm, non-sterile This 33 mm syringe filter with a Hydrophilic Polyethersulfone membrane, for non-sterile filtration on the Samplicity G2 system, has a 0.22 µm pore size used in preparation of aqueous solutions prior to chromatography or other instrument analyses.; find Millipore-SAMP2GPNB MSDS, related peer-reviewed papers, technical