100mm Fire Rated Metal Extract Air Valve

100mm Fire Rated Metal Extract Air Valve Meets the requirements of Building Regulations Maintains integrity of Fire Rated ceilings for up to 60 minutes Alternative to more expensive Metal Fire Rated Valves / Fire Dampers Both Extract & Supply versions available Fits in the same way as a normal air valve Air flow is unaffected Easy to retro fit in place of existing valves Highly cost effective