Lomanco BIB12 Whirlybird Internally Braced Aluminum Turbine Ventilator, 12" N/A blade-changing mechanism in handle maintains

blade-changing mechanism in handle maintains tension setting

with new built-in lightning arresters

10% iron to green grass to a deep green color

you will need to install more than one unit for maximum effectiveness

1" housing diameter (stainless steel)

Lomanco BIB12 Whirlybird Internally Braced Aluminum Turbine Ventilator, 12" N/A blade-changing mechanism in handle maintainsWhirlybird turbines offer all of the essentials for energy savings and are geared toward going green. Features permanently lubricated upper and lower ball bearings that ensure long life and no maintenance. Other common features of the turbine are its rigid spider type construction riveted at every connection and tested to withstand winds of 110 M. P. H. 100% rust free all aluminum construction. When installed properly, the Whirlybird turbine reduces