Rigid cavity liner.
Contains an internal baffle to reduce light and draughts.
External water baffles prevent the transfer of water across the cavity.
Compatible with Rytons Multifix® Air Brick MFAB.
May be finished internally with a Rytons 9×3 louvre or hit & miss ventilator.
Please note: This item is a plastic component and therefore is not suitable for use within the external walls of high-rise buildings over 18m (11m in Scotland) and those 11m and above undergoing unsafe cladding remediation work.