Diameter: 127 mm
Features: Ventilator can slide open or closed Free air space 1920 sq mm Countersunk for fixing screws supplied Material thickness: Satin Anodised Aluminium 1.5 mm Brass or Chrome 1.2 mm Stainless Steel 1.2 mm White Coated Aluminium 0.9 mm Please allow 7-10 days for delivery