Syringe filters. Supplier: VWR Collection. Description: Available with either PP, PTFE or nylon membrane. Membranes are available in either 0,2 or 0,45 µm pore size, with the choice often made on analytical ,514-0070EA,514-0066EA,514-0065EA,514-0067EA,514-0071EA,514-0069EA,514-0068EA.