Rytons 9″ × 6″ Ventilation Set with Hit and Miss Ventilator TC18HM
Telescopic cavity liner set for background room ventilation. Cavity liner contains an internal baffle to reduce light and draughts.
Equivalent area: 198cm²
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.
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