Oct 29, 2021 · ptfe membrane filter 0.2 um for coal-Voa Vial Supplier Description Syringe Filters, 0.2 um Hydrophobic PTFE, 13 mm; 100/Pk. Key Features. Non-pigmented acrylic or polypropylene (PP) housings feature integral filter sealing to avoid the risk of contamination from pigments and adhesives. Each filter is clearly marked with membrane pore size.