Rectangular fire damper, KOOLAIR, model SCFR-3H, S/UNE-EN 1366-2:2000 EI-180 (ve i↔o). Fire resistence 3 hours. Rectangular fire damper class EI-180, cold smoke leakage as per norm EN13501-3:2005.
Maximun dimension 1500 x 800 mm.
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