3M Fire Barrier Plug PLG4, 4 in, Maroon, 4/case
- Works with 2-inch Round 3M Fire Barrier Pass-Through Device to help prevent the spread of smoke and fire
- Enhance cold and hot smoke seal
- Plays a part in a system that allows pass-through device to achieve UL classified L-Rating
- Foam plugs are part of a hassle-free firestop method