Filter manifold systems 3- and 6-place. Traditional multi branch manifolds and individual filter holders for microbial enumeration. The filter holders and manifolds have been designed specifically for applications in which the particles or microorganisms retained on the membrane filter surface are of interest. Available with either 100ml or 500ml funnels. Note: Stainless steel manifolds only (Combisart) without funnels for use with suitable adapters are also available for attachment to all Sartorius vacuum funnels.