Provides through floor penetration firestop protection for both plastic and metal pipes and all types of cabling. Highly intumescent firestop. Fills the void of the CID opening, blocking the flame/smoke from infiltrating through the floor. Tested and approved to ASTM E814 (UL 1479) and is compliant with the International Building Code (IBC) and other building code authorities. Heavy-duty, crush-resistant design.