Jul 08, 2021 · PTFE Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 Buy PTFE Membrane Filter,25mm,Hydrophobic,0.22um,200/pk. Fast Shipping and Smart Support Product Specifications Filtration area(cm2) 4.9 Wettability Hydrophobic Maximum operating temperature 130 Degrees C Bubble point (psi) 14.5 Burst pressure (psi) Minisart filters pore size 0.2 μm | Sigma-Aldrich Minisart filters have a Luer Lock inlet