Main material of microporous filter membrane including, mixture of cellulose(MCE), cellulose acetate(CA), nylon, polypropylene(PP), Polyether sulfone (PES) PVDF, Polytetrafluoroethylene (PTFE),PC, glass fiber, etc. They are widely used for gravimetric analysis, microanalysis, colloid separation and sterility test . Product Features: 1. Nylon