Filtration unit for use with a Sartorius vacuum manifold or direct attachment to a special vacuum pump. Biosart^® 100 Monitors have been specifically designed for the microbiological testing of pharmaceuticals, food, beverages, water and other liquids. These sterile disposable units with built-in membrane filter and cellulose pad are ready to use. After filtration, just remove the 100ml funnel to convert the monitor into a petri dish. Culture media for wetting the pad are available in individually sterilised, convenient plastic ampoules. Biosart^® 100 Monitors are ready to use filter units designed to fit onto the receivers of a vacuum manifold. For use with Biosart^® 100 culture media.