RAFF-i

headbox made of folded aluminium sheet
the box is available in the following dimensions: 200x140 mm, 240x140 mm, 300x140 mm
possibility of offsetting the box to the window frame
insulation of the space between the box and the lintel
inspection flap from the outside of the window
maximum box width up to 5500 mm
minimum box width: 550 mm
very simple and quick assembly
possible to be flush mounted
the possibility of using divisions in one box