The tops of the holders are connected to the outlets of the flushing tube with silicone tubing and glass stop cock. A vacuum resistant flask must be placed between the manifold and vacuum pump. (Supplied without vacuum resistant flask and Vacuum/ Pressure Pump). These units are used for sterility testing when the membranes filter is to be removed from the holder for incubation in culture media. Filtration areas is 12.5cm and has a holding capacity of 250ml. Though only vacuum is required for filtration , some pressure is required for flushing liquids. These are sturdy in design, compact in size and offer reliable performance for a longer duration.
