PVDF Syringe Filter, iPure™ brand, 0.22µm, 25mm housing . SimPure 100 Pack Sterile Syringe Filter PES, 0.22um Pore Size . Membrane Solutions Syringe Filter PTFE Membrane 100 PCs, 0.22um Pore Size 13mm Disc Diameter, HPLC and GC Needle Filter, Non Sterile, Hydrophobic, High Throughput Lab Filtration Barreled Packed 4.3 out of 5 stars 84