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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
000mm² airflow
Quantity of required dry verges
White Hooded Cowl Air Vent Ducting Grille
Pack of 100
Louvred 4mm flyscreen grill prevents entry of birds and large insects
Manthorpe Buff Interlocking Air Brick Vents Pack Size:20 000mm² airflowProduct Description Manthorpe Buff 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
