The SpecSeal® Intumescent Sleeve is a factory‑manufactured firestop device engineered to protect both metallic and nonmetallic pipes penetrating fire‑rated concrete wall and floor assemblies. Built with a flexible steel sleeve body and a molded high‑performance intumescent lining, the SpecSeal Intumescent Sleeve adjusts to fit pipes ranging from 2 in. to 4 in. trade size. Once wrapped around the penetrating pipe, the sleeve slides easily into the opening, enabling top‑side installation in floors without the need for steel screws, hose clamps, or additional hardware. This streamlined design provides a clean, code‑compliant, and time‑efficient solution for restoring fire resistance in concrete wall and floor penetrations.