Myers Hub, Die Cast ZincSome items may require minimum order quantities which can be changed in your shopping cart. Description Myers Hub, Die Cast Zinc Standard watertight hubs are used with threaded rigid or IMC conduits to connect and bond them to threaded openings in boxes or enclosures. Primus Cables die cast zinc watertight hubs may be used in both wet and dry locations. Primus Cables watertight hubs have a rugged metallic construction to ensure mechanical protection