Timloc Plastic Airbrick 215w x 69h x 60dmm Black

"Robust airbrick ventilator ideal for use with cavity sleeves and the 1201 and 1201XL telescopic underfloor ventilators. Equivalent area of 6170mm2 per air brick Unique stepped front grille greatly reduces the entry of wind driven rain 6.5mm wide front grille openings comply with BS 5440 Pt 2 and British Gas requirements Integral clip together facility allows multiple airbricks to be stacked to form 9” x 6” and 9” x 9” sizes Durable and totally resistant to decay Satisfies all NHBC requirements Manufactured to BS EN ISO 9001 and BS EN ISO 14001 Complies with all relevant Building Regulations Meets all relevant British Standards Equivalent area marking to front face of airbrick to comply with BS EN 13141-1 : 2004"