See II Air Foils

The SEE II Air Foil is a surface mounted unit installed at the top rear of a school bus, freight truck, delivery truck, ambulance or stock trailer. It consists of an outer and inner foil. The design function is to collect oncoming air, change the direction and increase the speed while shooting it down vertically against the rear of the vehicle. This keeps debris of the air and weather from collecting or adhering to the rear end.