Jun 12, 2017 · Sell on Amazon Omicron SFTF13RB PTFE Syringe Filter, 13 mm, 0.2 um, Non-Sterile (Pack of 100) Visit the Omicron Store About this item Absolute microbial retention High Flow Rates Low extracta High non-specificabsorption Low chemical background permits highly sensitive, interference-free Levels Wettability: Hydrophobic Hold up Volume: 3.9cm²