Rytons 9″ × 3″ Ventilation Set with Hit & Miss Ventilator TC8H&M
Telescopic cavity liner set for background room ventilation. Cavity liner contains an internal baffle to reduce light and draughts.
Equivalent area: 102cm²
WARNING: Not suitable for use in external walls in high-rise buildings with a storey 18m or more above ground level due to Regulation 7(2) and Building Regulations Approved Document B.
Not suitable for use in external walls in buildings with a storey 11m or more above ground level due to Building (Scotland) technical handbook 2019: domestic and non-domestic, 2.7.