32 mm RephiQuik PVDF Sterile Syringe Filters are composition of specially manufactured hydrophilic PVDF membranes and high-quality polypropylene (PP) housing. PVDF membrane brings the benefits of lowest protein and preservative binding level and high sample recovery ratio among all membranes; making 32 mm RephiQuik PVDF Sterile Syringe Filters the ideal choices of filtering genetically engineered products and other protein solutions. They are mainly used in filtration of tissue culture media / additives and sterilizing biological solutions. Its unique design ensures no leakage of particles to the down-stream side of the membrane. Compared with usual 25 mm syringe filters, 32 mm RephiQuik filters brings at least 20% more effective filtration area (4.4 cm2) while 20% lower hold-up volume (below 80 µL).