Designers Toolbox Videos, CAD files and more to help you and your project Product Test Videos We test products for all types of conditions to meet industry standards around the world. Watch a few of our videos to see what we put our products through. Product Cross Reference Our Cross Reference system allows you the ability to find the high quality United Enertech products if you are familiar with other brands. Autodesk Revit Ready Each of our products is available in complete CAD Autodesk Revit format to allow for streamlined workflow into your existing projects. Free Area Calculator Download our Free Area Calculator Excel file to asset in calculating the free air and throughput of our available systems.