Description
These ventilation grilles are universally applicable and are particularly used where high sound insulation with low air resistance needs to be achieved. The standard version is made of galvanized steel sheet with subsequent coating in the desired color. It includes a protective mesh to prevent rodents and birds from entering.
Technical Specifications:
Dimensions W x H: 1200 x 1000 mm (also available made to measure) Installation depth T: 500 mm Weight: approximately 83 kg Free cross-section: 40% Sound insulation level Rw: 21 dB (ISO-140-3 / ISO-717-1)