The RNK/E top-mounted roller shutter system is designed to be built-in - once installed, the box is completely invisible from the outside. The RNK/E system is available in three different heights: 175 mm, 200 mm and 205 mm. All boxes can also be fitted with a rolling mosquito net after installation. The system also allows the use of MINI and MAXI shutter slats and is compatible with various profile systems from aluplast or other manufacturers of PVC, aluminium and timber window systems with a frame depth up to 90 mm.