Plastic Airbricks
Aug 06, 2020
9″ x 3″ Plastic airbricks used for underfloor ventilation Can be clipped together to form 9″ x 6″ and 9″ x 9″ sizes Airbrick ventilator presenting an equivalent area of 6170 mm2 (free area of 6500mm2) per unit. Suitable for use with a cavity sleeve and telescopic vent