SURPASSES ALL FANS IN ITS CLASS !
Cast aluminum 3-blade airfoil propeller with Macheta® tip and new profile for higher airflow and efficiency.
Streamlined fiberglass housing for maximum efficiency.
State-of-art shutter design using counterweighted airfoil blades, intake channel and weather-tight seals.

U.S. Patent Nos.6386828; 6616404; 6953320.