Globe Scientific PureFlow Syringe Filter, PTFE, 30mm SF-PTFE-4530. Globe Scientific authorized distributor . ☎ +1 (838) 222-2032 Mon-Fri 8:00 AM - 5:00 PM or order online 24/7 Globe Scientific SF-PTFE-4530 – PureFlow Syringe Filter, PTFE, 30mm Membrane Type: PTFE Hydrophilic Membrane, Porosity: 0,45u, Size: 30mm | Lab Equipment Depot