Glass reactor filter funnel filtration chromatography column solid Buchner 20 ml

Looks like new Chemglass or LG Glass reactor approx 20 ml volume. filter coarse (C) on the bottom. teflon stopcock on the top and on the bottom. side arm with 14/20 joint - useful for solid phase preparative reactions or just as small chromatography column (diameter 20 mm. working length 35 mm) or as Buchner filtration funnel with option to use pressure or vacuum for filtration. Another sizes available as well with threaded side arm or 14/20 joint. The discounts available for multiple items purchase