CHARACTERISTICS: Circular diffusers with fixed cones and removabel core and butterfly damper. CONSTRUCTION: White RAL 9016 painted aluminium and airtight seal. UTILIZATION: For ceiling installation and for air intake and delivery. Installation height: 2,6 – 4,1 m. FIXING: Fixing by concealed fixing screws mounted on the diffuser neck or with mounting bridge. ACCESSORIES: Fixing ring.