W3002
Square hole ventilator. Holes 12mm square with 6mm web. Sizes 300mm x 100mm, 600mm x 200mm or any size to order from widths 75mm, 100mm, 150mm, 200mm 250mm, 300mm in cut lengths upto 2m. Maximum width 305mm. Made in Aluminium. Supplied plain or drilled for fixing. Anodised.