• 4.3mm Elastromeric fins for smoke and acoustic sealing. • Provides the perfect low-cost solution for maximising the acoustic performance of doors and sealing against cold smoke penetration. • Air pocket design for optimal acoustic sealing. • Low door opening & closing resistance. • Tested up to 1 million operational cycles. • Cold smoke leakage less than 3m3/m/hr. • Suitable for new or retro-fitting. • Maintenance free.
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