Can filter chemicals that cannot be filtered by filter paper or diaphragm; can be used with filter erlenmeyer flask, filter adapter cones and others; ideal for chemical analysis, petroleum industry, pharmaceutical industry and so on G1 80~120 μm Nominal Max. pore size; compatible with StonyLab Qualitative/Quantitive Filter Paper Circles in 46 mm diameter Glass Buchner Filter Funnels; made of premium glass Special Notice: not for filtering hydrofluoric acid, hot concentrated phosphoric acid, concentrated alkaline solution, etc.; please clean immediately after use; keep it clean and dry when stored; maximum withstand temperature 200°C 1-year limited manufacturer warranty Our Labware refers to a range of equipment and containers designed for use in laboratory environments. These items are typically crafted from materials like glass, plastic, or metal to ensure durability and chemical resistance. Common examples include beakers, test tubes, flasks, and petri dishes, which are used for measuring, mixing, or storing in scientific, educational, or industrial settings.