Supplied with Funnel, Support Scrren, Clamp and Stopper. Vacuum filtration is used primarily in microbiological and analytical procedures that involve collecting a particulate (bacteria, precipitate, etc.) from a liquid suspension. Liquid poured into a funnel passes through a filter, which retains the particulate, and filtrate can be collected into a filter flask, directly or via a vacuum manifold. Applying vacuum reduces process time compared to gravity flow. Glass Frit: Recommended when filtering highly acidic (low pH) solutions or when slower flow rates are preferred to maximize contact with the filter or reagent. Larger filtration area for filtering larger volumes up to 1,000 ml. Use for viscous samples or those with a heavy particle or bioburden that would clog a 47 mm filter.
