The CF Master transformer cooling fan is available in five sizes: 12″, 16″, 18″, 24″ and 27″ cast aluminum propellers. All of or fans have OSHA-compliant guards (all openings are less than 1/2″). Guards are heavy duty, hot dip galvanized for durability. Standard airflow up to 8,880 CFM. Motors are securely connected to the guard…