Superior 8" Chimney 1" Clearance Firestop Spacer - 3600FS-8DM-1

The Superior 8" Chimney 1" Clearance Firestop Spacer - 3600FS-8DM-1 provides an effective fire barrier to prevent fires from spreading between floors. This spacer increases the fire-resistance rating of an assembly by up to 4 hours with proper installation. It also provides an air space to minimize the risk of corrosion in contact with concrete.