3M Fire Barrier Plenum Wrap 5A+ 1/2 in x 24 in x 50 ft Roll 1/case

Applied 1-layer thick, 3M(TM) Fire Barrier Plenum Wrap 5A+ creates a fire-resistive enclosure that can reduce the flame spread and smoke spread ratings to acceptable levels for return air plenums. It is tested to UL 910 (NFPA 262), UL 1887, and ASTM E 84.