Stainless steel manifolds have PTFE valves for each branch to provide individual control of vacuum and air Venting. Branches accept no. 8 stoppers. Hose barb adapter accepts 3 and #8260;8" ID vacuum tubing. Sterility Test manifolds feature an extra flushing manifold for sterile buffer with a 1 and #8260;4" hose barb connection to flushing manifold. Use with sterility Test filter holder 06645-98. Autoclavable. Distance between stations is 5.5 inch (14 cm). significantly reduce process time compared to gravity methods two- and three-way valves feature PTFE stopcocks for smooth control. Valves provide independent control at each branch for vacuum and Venting. Connect three or six filter holders to one vacuum source.