Sigma-Aldrich: Analytical, Biology, Chemistry & Materials
Millex-FH Filter, 0.45 µm A 50 mm diameter non-sterile syringe filter with a 0.45 µm pore size hydrophobic PTFE membrane. Comes in a pack of 100. pricing. SLLG025SS. Millex-LG, 0.20 µm A 25 mm diameter sterile syringe filter with a 0.2 µm pore size hydrophilic PTFE membrane. Comes in a pack of 50. pricing.