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• Over frame acoustic ventilator
• Can fit onto windows or doors with a depth between 50-194mm
• Self Regulating
• Equivalent area 12725 mm2/m
• 43 Dnew Acoustic performance in the open position
• Available as face fixed or adapted glazed in
• Large Z type Blade
• 65mm Blade Pitch
• 53% physical free area
• Available as glazed in thickness from 24mm to 36mm
• Larger Chevron blades
• 34mm Blade Pitch
• 50% physical free area
• Available as face fixed or adapted glazed in blades
• Z type Blade
• 34mm Blade Pitch
• 35% physical free area