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.
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