starline design grills are a true eye-catcher of heat recovery ventilation systems. The ventilation grills are available in 39 modern designs to match each and every interior style. The starline grills are both stylish and easy to install. Only three simple steps are required to install the design grills without the use of tools. Thanks to the sophisticated profi-air series, the ventilation unit, the piping system and the ventilation grill form a true single-source concept in terms of quality and functionality.