Enhanced Seal for Fire PreventionEngineered to help stop smoke and sound, 3M Fire Barrier Pass-Through Device Foam Plugs are replacement foam plugs designed for firestop applications in walls and floors. These are re-enterable and reusable. Installation is easy, saving both time and labor.Recommended ApplicationsSeal ends of 3M Fire Barrier Pass-Through DevicesReliable and Affordable Fire ProtectionEffective and easy to install, 3M Fire Barrier Pass-Through Device Foam Plugs are part of 3Ms family of fire protection products that offer the broadest, long-lasting solutions for a variety of commercial, industrial and residential applications. As a trusted leader in the fire protection industry, 3M offers a broad line of affordable products designed to meet the most demanding firestop requirements. Find the solution you need from the industry-preferred line of fire protection products.