3M™ Fire Barrier Plastic Pipe Device works with 3M™ Fire Barrier Wrap Strip FS-195+ Firestop for six inch (15.24 cm) non-metallic pipe in new and retrofit through penetration installations. This one-piece metal collar assembly is designed to fit smoothly around the material with no assembly required, and provides anchor tabs for stability. It is firestop tested up to two hours in tested and listed systems.