CHARACTERISTICS: Swirl diffusers. CONSTRUCTION: RAL 9010 white painted steel. UTILIZATION: For ceiling installation and for air intake and delivery. Installation height: BQS = 2,6 - 4,0 m. FIXING: Fixing by using lateral screws or central screw on mounting bridge. ACCESSORIES: • Galvanized steel plenum, standard or insulated, with or without equalizer sheet, calibration damper and mounting bridge.