Description_x000D_ General description_x000D_ Assembly includes: 300 mL funnel top, fritted glass funnel support, 1 L filtration flask, aluminum clamp, and # 8 silicone stopper._x000D_ 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._x000D_ Includes: Funnel top, funnel stem/membrane support, aluminum clamp, stopper (except standard taper units) and filtration flask (where indicated)._x000D_ For replacement parts, visit our online glassware catalog at www.sigma-aldrich.com_x000D_ Legal Information_x000D_ Sigma-Aldrich is a registered trademark of Sigma-Aldrich Co. LLC