Jul 25, 2021 · syringe filter with prefilter. Model No.: Media Material:Nylon 66 ,PES,MCE,PTFE,Hydrophobic PTFE,PVDF,Hydrophilic PVDF,PES Product Description Syringe filter with double layer pre filter The double layer syringe filter is specifically designed for high particulate loaded samples Constructed of polypropylene housing with a prefiltration made of glass microfiber these filters