Intumescent Blocks

  • pyrogrille-intumescent-door-transfer-grille

    Circular Intumescent Fire Block

    From: £37.61

    Circular fire rated air transfer grille for use in ventilation duct. 38mm thick. Approx 60% free area. Up to 120 mins fire integrity. Non standard sizes are available to order, please contact us with your requirements.

  • pyrosquare-intumescent-door-transfer-grille

    Square Intumescent Fire Block

    From: £33.12

    Sqaure fire rated air transfer grille for use in doors and walls. 38mm thick. Approx 60% free area. Up to 120 mins fire integrity. Wide Range of Decorative covers available. Non standard sizes are available to order, please contact us with your requirements.