Restek 0.2 um syringe filter for hplc HPLC Syringe Filters – Glass, PTFE, PES, PP, Nylon, & More We carry syringe filters made of glass fiber, polypropylene (PP), polyethersulfone (PES), PVDF, polytetrafluoroethylene (PTFE), cellulose acetate, and more. HPLC Syringe Filters available in two sizes: 13 mm and 30 mm.