Steritop Threaded Bottle Top Filter Sterile, 1000 mL Steritop Quick Release-GP 45 mm threaded bottle top filter with 0.22 µm pore size fast flow polyethersulfone (PES) Express PLUS membrane. | Sigma-Aldrich
ZAPCAP CR NL 0.2 UM PK12: Amazon.com: Industrial & Scientific
431174 | Corning® 1000 mL Bottle Top Vacuum Filter, 0.22 µm Pore 54.5cm² PES Membrane, Fits 45 mm Diameter Necks, Sterile, 12/Case | Corning
CellPro™ 250mL, 0.22μm Bottle Top Filter, PES Filter Material, 50mm, Sterile 1/Bag, 24/CS
ADVANGENE 150ml Bottle Top Only Vacuum Filtration, 0.22µm PES Membrane, Graduated, Sterile (12 Filter Tops/case): Amazon.com: Industrial & Scientific