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€˜Equivalent Area€™ tested by BRE to BS EN 13141-1:2004
Dimensions:
Ceiling or wall mounted
Clearly marked for cutting to various slate sizes
On and off adjustable vent (Hit and Miss)
Brown Framed Flood Water Defence Protection Airbrick Cover Cavity Sleeves €˜Equivalent Area€™ tested by BREProduct Description Airbrick Flood Water Defence Brown Frame and Cover Discreet solution to the problems of flood damage caused by unprotected airbricks. In the event of a flood the easy to fit cover clips onto the frame to stop water from entering. Simply use a bead of silicone to create a seal to the brick and screw on the flood defence frame. Designed to cover the opening of a 9" x 3" airbrick. Can be used with any plastic, clay or concrete
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