
DELIVERY UPDATE: Due to ice storm conditions, delivery routes will not run on 4/2 in Stevens Point, Wausau, or Minocqua.Â
We will continue to monitor conditions. All other routes remain scheduled at this time.
Product Description
3Mâ„¢ Fire Barrier Electrical Box Inserts are a flexible, one-piece fire-rated intumescent insert used to protect electrical boxes by placing inside the box. When exposed to fire, the insert expands to fill up the box preventing the spread of fire and limiting temperature rise.
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