6-Port Tray Dryer Manifold. Six valves provide the flexibility to connect flasks and other freeze dry glassware to the Freeze Dryer with Stoppering or Bulk Tray Dryer. Valves accommodate either 1/2" or 3/4" flask adapters. Mounts to support stand included with the Tray Dryer. May be field installed before or after the Tray Dryer is installed on the Freeze Dryer. Included with Bulk Tray Dryer 7806021 and 7806031.