The popular 120mm & 180mm Airfoil louvres incorporate fine aerodynamic lines with the elegant strength of a triple box section shape. Both Airfoil louvres been upgraded to incorporate the Spiral Pivot System. Also available End or Bracket Fixed. All new is a range of three Maxi louvres, 200mm, 300mm & a jumbo sized 600mm. These new generation Maxis are distinguishable with clean symmetrical lines and fine leading edges. The 200mm & 300mm Maxi louvres are also available with the Spiral Pivot System.