About this item Product Type: g1 fritted glass Buchner funnel with sintered glass disc, nominal pore size 80–120 μm, designed for filtration tasks where filter paper or diaphragms are ineffective Material & Construction: premium laboratory glass construction with integrated sintered disc, providing high chemical resistance, uniform porosity and long-term durability System Compatibility: compatible with standard vacuum filtration systems including filter Erlenmeyer flasks, adapter cones and vacuum lines, supports StonyLab qualitative and quantitative filter paper circles with diameters from 46–114 mm Intended Use: suitable for analytical chemistry, petroleum industry and pharmaceutical laboratories, ideal for solid–liquid separation, sample preparation and particulate analysis Safety & Care: not suitable for hydrofluoric acid, hot concentrated phosphoric acid or concentrated alkaline solutions, maximum operating temperature 200 °C, clean immediately after use and store clean and dry, backed by a 1-year limited manufacturer warranty