The Air Vent Wind Turbine comes with a 12 inch opening and 95 sqquare inches of NFA. It is Miami-Dade approved. A non-electric alternative to ventilation these vents use the natural force of wind and air pressure to spin and vent out stale attic air....
The Air Vent Wind Turbine comes with a 12 inch opening and 95 sqquare inches of NFA. It is Miami-Dade approved. A non-electric alternative to ventilation these vents use the natural force of wind and air pressure to spin and vent out stale attic air....
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