Glass reactor filtration funnel filter pressure vacuum chromatography column 10

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 threaded approx 20mm OD joint - useful for solid phase preparative reactions or just as Buchner filtration funnel with option to use pressure or vacuum for filtration. also could work as 10 ml chromatography column (ID 20 mm. working length 35 mm). Another sizes available as well with threaded side arm or 14/20 joint. For multiple units order please request the discounted shipping first