STI 4" SpecSeal FP Intumescent Firestop Plug, FP400

SpecSeal FP Intumescent Firestop Plugs are easy to install, creating a robust seal against fire and smoke. Firestop Plugs make an excellent solution for temporary installation overnight as well as permanent long-term seals for blank openings and cable penetrations. Sized to fit 2" and 4" diam. openings, firestop plugs make sealing conduit stubs and sleeves a breeze.

• Testing in Gypsum walls and concrete walls and floors
• Soft and easily compressed into conduit stubs and sleeves
• Partners with other SpecSeal Firestop Products