Polystyrene Bottle Top Filter - Bellco Glass | Laboratory Glassware
CellPro™ 250mL, 0.22μm Bottle Top Filter, PES Filter Material, 50mm, Sterile 1/Bag, 24/CS
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