• The OPTI-A312 attic ventilator is designed for sloping roofs
• 12" 3-blade design and openings provide optimal attic ventilation
• Openings molded into the structure of the ventilator eliminate the need for long-term maintenance and prevent birds and rodents from entering the interior
• Anti-gust deflectors prevent weather infiltration regardless of wind direction
• This ventilator provides the advantage of a cooler attic in summer and a drier one in winter
• It prolongs the integrity of the structure, optimizing indoor comfort and energy savings
• This static fan provides superior suction and, with the help of the wind, produces a chimney effect
• Air is exchanged continuously at a rate of 266 f³/ min
• This model can ventilate an area of up to 850 sq. ft
• Facilitates evacuation of heat and condensation
• Helps preserve the integrity of attic materials
• Automatic slope adjustment from 2/12 to 18/12
• Easy to install, as only one person is required for installation
• Screws included
• CSA-certified
• Anti-gust deflector
• Quiet and maintenance-free
• Color: black