FV-3045EX - Filter Vial, 0.45um EX-PVDF,slit cap, 100/pk. Specializing in high-performance liquid chromatography instrumentation, Chrom Tech is a leading distributor of GC and HPLC products, supplies, and equipment. Phenomenex Filtration Part: 25mm Acrodisc 0.45um GHP, Syringe