• Glazed in acoustic ventilator
• Can accommodate glass thickness between 24-48mm
• Self Regulating
• Equivalent area 15016 mm2/m
• 27 Dnew Acoustic performance in the open position
• Glazed in acoustic ventilator suitable for high level Elevations
• Can accommodate glass thickness between 24-28mm
• Equivalent area 14888 mm2/m
• 27 Dnew Acoustic performance in the open position