Lomanco BIB12 Whirlybird Internally Braced Aluminum Turbine Ventilator, 12" N/A you will need to install

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

with new built-in lightning arresters

Galvanized prior to weaving for longer-lasting rust protection

Short aluminum alloy Xtralite® mounting is lightweight but very strong

1" housing diameter (stainless steel)

Lomanco BIB12 Whirlybird Internally Braced Aluminum Turbine Ventilator, 12" N/A you will need to installWhirlybird 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