• Size: 274mm x 235mm x 103mm
• Free area: 23900mm squared (239cm squared)
• Surface mounted cover for 9" x 9" openings, air bricks, grilles and vents
• Protects against excessive weather conditions
• Alleviates air blasts through the cavity
• textured roughcast finish
• U.V. stabilised to slow down the effects of sunlight

Installation:

• Fix to the brickwork through the pre-formed holes in the flange
• Check the free air space of the cowel exceeds the air space required by the covered opening, air brick, grille or vent.