Square slit grill size. nom. 140x140 mm in white PVC RAL 9010; flow rate at 1 m/s: 45 m3/h. MODEL AVAILABLE (nominal sizes = hole sizes): - 140x140 mm grid.
Rectangular PVC louver grilles in white RAL 9010. AVAILABLE MODELS (with nominal sizes = hole sizes): - Grille 200x100 mm. - 300x100 mm grid. - 400x100 mm grid.
