Millex-GS Syringe Filter Unit, 0.22 µm, mixed cellulose esters, 33 mm, ethylene oxide sterilized A 33 mm diameter sterile syringe filter with a 0.22 µm pore size Mixed Cellulose Esters membrane. Comes in a pack of 50.; Synonyms: syringe filter,disposable syringe filter,sterile syringe filter; find Millipore-SLGS033 MSDS, related peer-reviewed papers, technical documents, similar products