Rytons Metal Louvre Ventilators 9″ x 9″ – Low profile, fixed, open louvres. Strong, durable and slim. Suitable for rooms and cupboards. Composition: 0.8mm 20 gauge brass anodised aluminium 242mm long x 242mm high x 5mm depth F30 Accessories/Sundry Items for Brick/Block/Stone Walling: Specification clauses 16, 165 U90 General Ventilation – Domestic: Specification Clauses 36, 38, 61, 360, 380, 505
