Sigma-Aldrich^® vacuum filtration assembly 

Assembly includes 1 liter funnel top, fritted glass funnel support, 4 liter filtration flask, and aluminum clamp.

Vacuum filtration apparatus for HPLC solvent purification, particulate analysis, bacteriological studies, radiochemical determinations, quantitative gravimetric analysis, and similar applications. Clamp seals filter membrane between flanges on funnel top and funnel stem. Includes funnel top, funnel stem/membrane support, aluminum clamp, stopper (except standard taper units), filtration flask (when indicated). For replacement parts, visit our online glassware catalog at www.sigma-aldrich.com.