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The protruding drip feature on the front face of product directs moisture away from the wall rather than down onto it which could lead to unsightly stains and damp patches
External Cowl: 160mm x 190mm
Hooded Wall vent with internal back draught shutter
€˜Equivalent Area€™ tested by BRE to BS EN 13141-1:2004
For commercial and domestic use
Manthorpe Brown Interlocking Air Brick Vents Pack Size:20 The protruding drip feature onProduct Description Manthorpe Brown 9" x 3" Air Brick Vents Plastic interlocking air brick ventilator. Part number: G930. Provides 6,450mm of airflow per 9" x 3" airbrick. Clip together facility provides a choice of ventilation sizes. Can be stacked together to create 9" x 6" and 9" x 9" combinations. Additional G935 extension sleeves available in . Moulded in mortar key ensures secure adhesion to the building fabric. Meets NHBC requirements for the
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