3M™ Fire Barrier Plastic Pipe Device is a one-piece metallic collar assemblyencasing 3M™ Fire Barrier FS-195+ Intumescent Wrap Strip material. Manufactured with 3M's firestop technology, 3M™ Fire Barrier Plastic Pipe Device has beendesigned to firestop non-metallic penetrations in fire rated assemblies, helpingprevent the passage of smoke and flames in the event of a fire.