UPC# 00 051115 18794 0 3M ID 98040055596
 | DescriptionReplacement foam plugs for 4-inch Square 3M Fire Barrier Pass-Through Device. These foam plugs enhance the Cold and Hot smoke seal (device can achieve UL classified L-Rating with foam plugs and 3M Fire Barrier Sealant or Putty MP+, see system details). DescriptionReplacement foam plugs for 4-inch Square 3M Fire Barrier Pass-Through Device. These foam plugs enhance the Cold and Hot smoke seal (device can achieve UL classified L-Rating with foam plugs and 3M Fire Barrier Sealant or Putty MP+, see system details).
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