Microporous Filter Membrane (0.8µm/100mm), model FF338 is manufactured by Beyotime. This product has a diameter of 100mm and a pore size of 0.8 microns, which can be used with a stainless steel filter (EFL108). This filter membrane is made of mixed fiber resin, water-based, can be filtered with clean water, and is suitable for filtration of pH 2-9 solutions.