Metal–Fab 4MFS Type B Round Chimney Pipe Firestop – For Chimney Pipes with a 4 Inch Inner Diameter

About the Metal–Fab 4MFS Type B Round Chimney Pipe Firestop – For Chimney Pipes with a 4 Inch Inner Diameter

Running a Metal-Fab Type B Round Chimney Pipe through a combustible floor? This Metal-Fab Type B Round Chimney Pipe Firestop will close the opening and ensure that you maintain the required inch of clearance. For use with three-inch chimney systems.