3M™ Fire Barrier Plank PK39 is a smoke, sound, and firestopping pre-formed foam units. Planks are used for medium to large openings in wall and floor through-penetrations. Installation is simple. In case of a fire, Plank PK39 maintains a tight firestop against smoke and flames. Also check out 3M™ Fire Barrier Blocks.
Size 2.36 in. x 5.12 in. x 39.37 in.
Fire Barrier Blocks, Plugs, and Planks
3M Fire Barrier Plank