• Available as face fixed only
• Small chevron blades
• 20mm Blade Pitch
• 30% physical free area
• Glazed in acoustic ventilator suitable for high level Elevations
• Can accommodate glass thickness between 24-48mm
• Self Regulating
• Equivalent area 15270 mm2/m
• 26 Dnew Acoustic performance in the open position
• Available as face fixed or adapted glazed in
• Large Z type Blade
• Hi Air Flow Blades
• 60mm Blade Pitch
• 75% physical free area