Millex-FH Filter Syringe Filter Unit, 0.45 µm, hydrophobic PTFE, 50 mm, HB/HB A 50 mm diameter non-sterile syringe filter with a 0.45 µm pore size hydrophobic PTFE membrane. Comes in a pack of 10. - Find MSDS or SDS, a COA, data sheets and more information.