Manthorpe Grey Interlocking Air Brick Vents Pack Size:10 24" x 3" (610mm x

24" x 3"  (610mm x 76mm)

Stand out from wall: 50mm

Curved: 200mm x 175mm

1/4" - Qty 15

Hex Arbor & Pilot

Manthorpe Grey Interlocking Air Brick Vents Pack Size:10 24" x 3" (610mm xProduct Description Manthorpe Grey 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