This glass tunnel filter funnel is built for reliable filtration in chemistry and lab work. It offers visibility, durability, and compatibility with common lab setups. - Size and fit: 150 mm outer diameter; upper outer diameter 150 mm; 24/40 ground glass joint; short stem for a compact, drawer-friendly footprint. Works with standard 24/40 adapters and filter papers. - Material and visibility: borosilicate glass for chemical resistance and temperature tolerance; transparent body lets you monitor filtration progress at a glance. - Performance and reuse: precise joint seal enables secure connections to vacuum systems; reusable after thorough cleaning; smooth internal surface aids quick washing and reduces residue buildup. - Practical advantages: lightweight yet sturdy; easy to disassemble and clean; compatible with common filtration accessories for versatile lab use. - Applications (scenarios): - Vacuum filtration of a reaction mixture to isolate solids from solvent. - Filtration of crystallization slurries during recrystallization to collect crystals efficiently. - Filtration of suspensions for sample preparation prior to analysis or chromatographic steps.