Which “head” do I need for my Mya 4? What are the options? In order to accommodate the various glassware options, you may need to attach a head to the Mya 4. Our three options are: the Manifold head, the Reflux head and the Support head. Manifold head If you need to use multi-neck lids, such as process-type vessels, then you will need the Manifold head. You can then have condensers attached to the head. Distributes water for individual condensers With non-return shut-off valves Water-cooled Distribute gas for inserting Reflux head The Reflux head would be for if you wanted to use short vials/tubes or glassware from the Carousel 6 Plus range with reflux tubes Cools the outside of reflux tubes Efficient refluxing in a simple set-up Water-cooled Distribute gas for inerting Support head The Support head is essentially a scaffold. No water or gas distribution Compatible with Findenser etc.