The forend system 1 for window heights (windowsill to upper edge of windows) from 44 to 61 cm (bathroom and cellar windows)
Please choose on the right whether the tilt window is on your right or left.
If your curb window has 2 knobs (window handles), the side rail, which is clamped on the cuff side, must be as close as possible
to be clamped to the windows.
Standard color is RAL 9016, pure white
