15000ml Heavy Wall Vacuum Filtration Kit with 250mm Porcelain Buchner Funnel - 0.06Mp Suction Filter Flask for Chemistry Lab, Home Brewing & Scientific Experiments

Nice little vacuum flask and funnel. I liked the hose that came with the kit, it is extra sturdy and could be reused in almost a commercial setting. I used this flask to quickly filter a small sample this sample was on a electro winnings residue from refrigeration fittings with brazing ranging 6-15% silver. So the flask did great, I filtered silver residues from sulfuric acid and copper sulfate, rubber stopper was not hurt. Fit ok, happy with my purchase.