Rytons Rytblock 9 x 3 Air Transfer Grille

Heavy-duty intumescent air transfer grille for doors, walls, ducts and floors.

HETAS approved for solid fuel installations.

In the event of a fire, the slats fuse and give a complete seal in 2 minutes.

Gives up to 2 hours resistance to fire.

EI rating of 2 hours when used with a cover grille.

Galvanised steel framework protects graphite intumescent core by preventing inward deformation.

Suitable for use in external walls and areas with high humidity.

May be used horizontally or vertically.

Compatible with Rytons 9×3 AirLiner® cavity liner.

Free Area: 5,330mm² (53.3cm²) per unit.