Duct (up to 3600 x 3600mm) through any fire-rated wall. Protection from internal fire. 3M Duct Wrap 615+ single layer for duct and three extra layers adjacent to penetration. No collar required. With fillet of 3M Fire Barrier CP25WB sealant. FRR 60/60/60
System ID #: 499
Max Fire Rating: 60 mins
Max Thermal Rating: 60 mins
Size: Up to 3600mm wide x 3600mm high
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