EZFlow 90mm Glass Fiber membrane disc filters are manufactured from Borosilicate glass without binders. These glass fiber disc filters have good solids holding capacity and can be used as pre-filters for heavily contaminated solution samples. The glass fiber membrane disc filters have high flow rates, wet strength, and are available in a 1.00µm pore size and can be sterilized by autoclaving. All materials comply with USP Class VI Standards.