Intumescent RytBlocks

Rytons intumescent blocks are suitable for use with Rytons 125mm Dia. AirCores® and 9×3 and 9×6 AirLiners® and will quickly seal the vent against the passage of smoke and gases in the event of a fire. These heavy duty intumescent ventilation grilles may also be used behind louvres in fire doors to provide intumescent vents for doors.