Hydrophilic PTFE, Pack of 100 Hydrophilic PTFE Syringe Filters 13mm Diameter 0.22um Pore Size Laboratory Filters by Allpure Biotechnology; Housing Material: Medical grade PP. 2, Our team consists of professionals who have years of experience in the microfiltration industry and researchers who work at laboratories in Universities, Pack of 100, * Cost-effective, high porosity, Connections, Pore