3M Fire Barrier Duct Wrap 615+, 24 in x 25 ft, Roll

3M Fire Barrier Duct Wrap 615+, 24 in x 25 ft, Roll Brand 3M Colour Silver Material plenum Number of Items 1 Recommended uses for product Wall About this item Lightweight (6 lbs per cu ft) and thin (1.5" - in accordance with the tolerances in ASTM C 892) for easier application 2-hour fire protection Third-party certified to ASTM E 2336 (grease duct test standard) and ISO 6944 (air duct test standard) Tested and listed with UL and Intertek, meets IBC, IMC, UMC, NFPA and other key life safety codes