Sprung loaded 180 degree flap with brush inserts and a colour code frame
When used with an intumescent strip, has achieved a Warrington Fire Test. Report (WF Report No. 165855) 60 Minute within a section of timer based door leaf
Tested to BS 476-22:1987 Fire Tests on Building Materials and Structures when used with an intumescent strip
Narrow 20-40mm aperture size suitable for aluminium doors
Suitable for Timber, Composite and upvc doors
telescopic sleeves to suit midrail setting of 40-80mm