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External Brace Turbine Head, 12-In.

Various

The 12" externally braced wind turbine head is a non electric alternative to ventilation. It uses the natural force of wind and air pressure to spin and vent out stale attic air (345 cfm at 5 mph winds, 544 cfm at 8 mph winds & 969 cfm at 15 mph winds). The color is mill and can be used with any 12" turbine base.