Vacuum manifolds support simultaneous filtration of three or six test samples. Use Millipore glass, plastic or stainless steel filter holders fitted with standard No. 8 perforated stoppers over holder outlets.
Manifolds connect to single vacuum source and use separate control valves at each station for independent operation. Use vent ports on each stainless manifold station to attach Swinnex filter holders or Millex filter units to maintain sterility on test filter's downstream side.