Consists of s. S. Holders in manifold of 3 or 6 holders for 47m. M. Dia., Membrane filters . The tops of the holders are integrated into the outlets of the flushing tube with silicone tubing and glass stop cock. A vacuum resistant flask or woulfs bottle must Set in the gap between the manifold and vacuum pump. Supplied without woulf3. S bottle and vacuum/ pressure pump . These units are utilized for sterility testing when the membrane filter is to be taken out from the holder for incubation in culture media. Filteration areas is 12. 5 cm together with a holding capacity of 250ml. Though only vacuum is needed for filleration, Some pressure is required for flushing liquids. Constructed with durable stainless material steel ss, 316 /ptfe and autoclavable. Delivered fully equipped with manifold and filter holders.