3M 615+

THIN, LIGHTWEIGHT AND FLEXIBLE, 3M FIRE BARRIER DUCT WRAP 615+ PROVIDES EXCELLENT INSULATING CAPABILITIES AND OFFERS A SPACE-SAVING ALTERNATIVE TO TRADITIONAL BULKY FIRE PROTECTION METHODS OBTAINED THROUGH A GYPSUM WALL SHAFT OR ENCLOSURE. THIS WRAP IS COMMONLY USED IN COMMERCIAL KITCHEN GREASE DUCTS, AS WELL AS VENTILATION DUCTS.