KOOLSpin: Solar Attic Ventilation 120x the Power of a Whirlybird

KOOLSpin solar attic fans are designed to keep out unwanted heat in the summer and excess moisture in the winter. Heat and moisture in your attic are the most common causes of overworked A/C units, amber deposits, and mold.
Designed to counter heat and moisture, these fans ventilate up to 1,200 cubic ft. of air per minute. The standard whirlybird can only ventilate up to 10 cubic ft. per minute.
KOOLSpin fans are solar powered, hail proof, leak proof, and are backed by a lifetime guarantee.