Plenums or Grille Boxes

Providing the simplest and most effective way of connecting components such as grilles and diffuser to spiral/circular ducting with the use of an attached spigot. Grille boxes are manufactured in a variety of styles in order to attach the component to the boxes, this will be the entry and options are made for all of the available sides and combination of sides. There is also options for spigot plenum, this for when a component need to be connected to multiple ducts, these also come with an option for an additional flange.