Slot damper GS is used to regulate the flow of air in the ventilation door and wall grilles installed in medium- and low-pressure ventilatio...
Damper with counter running blades GP is used to regulate the air flow in ventilation wall grilles, ceiling and floor, and in anemostat diff...
Cantilevered damper GU is used to regulate the flow of air in the ventilation grilles in the medium and low-pressure ventilation instalation...