This general purpose double bank manifold is for use with vacuum and inert gas. Both banks are made from 1/2" medium wall tubing with 10 mm O.D. serrated connections on the upper left and lower right banks.
For a similar item that has two connections on the inert gas line see item #CG-4441-01. Both styles are available with 3, 4 or 5 ports.
The ports have 4 mm glass high-vacuum stopcocks with serrated hose connections and are spaced 85 mm center to center. All hose connections have a 10 mm small and 11 mm large serration.