FlowFilt Nylon 66 membrane filters are absolute filters with well defined maximum pore size. They are used as final filters. These filters are non fiber releasing & double layered membranes. They offer wide chemical compatibility. Are compatible with many solvents & alkali solutions. pH range is from 3-14. They can be sterilized or autoclaved. Other unique features include extremely low extractables, no surfactants & naturally hydrophilic. Four grades of pore sizes are available viz 0.22, 0.45, 0.8 & 1.2 microns. They are available in various diameters.