Free Air: 125cm² Louvred airbrick
BM 486/1 Blue/Black
BM 486/2 Terracotta
BM 486/3 Rustic red
BM 486/4 Buff/Sand
BM 486/5 Rustic Brown
Size: 216 x 152mm
Complies with BS 493 1994
Traditional style with rough cast brick finish. Fits both imperial and metric brickwork. Free area space greatly exceeds conventional clay airbricks.
Lightweight but tough. Ribbed for mortar key.