EZFlow® Syringe Filters EZFlow® sample prep syringe filters in a wide range of variants solve all application needs from pre-filtration and clarification, to particle removal of particle-laden, organic, and many other different solutions. The sample prep syringe filters are used for clarification and particle removal from samples before instrumental analysis such as HPLC, IC, and GC. These syringe filters are available in a variety of filter membrane materials, offered in 0.2µm or 0.45µm pore sizes. All materials comply with USP Class VI Standards. applications aqueous and organic solution samples pre-filtration and clarification particle removal of particle-laden, organic, and many other different solutions