Simply a Better Way to FirestopSave time and money with versatile 3M Fire Barrier Cast-In Device Height Adaptors. These adaptors allow installers to increase the height of 3M Fire Barrier Cast-In Devices to accommodate concrete slab pours up to 12 inches (304.8 mm) deep. This one-piece plastic adaptor features fast snap-on attachment to the Fire Barrier Cast-In Device no tools or fasteners are required. The adaptor can add up to 4 inches (101.6 mm) in height to Cast-In Devices for both plastic and metal pipes. It can also be modified for special applications in order to accommodate even greater depths.When used in conjunction with Fire Barrier Cast-In Devices in listed systems, 3M Fire Barrier Cast-In Device Height Adaptors are firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479).Recommended ApplicationsUse in conjunction with metallic and non-metallic 3M Fire Barrier Cast-In DevicesNew construction jobs requiring concrete slabs greater than 8 (203.2 mm) deepSpecial applications requiring concrete pour depths over 12 (requires modifications to the adaptor)Reliable and Affordable Fire ProtectionEffective and easy to install, 3M Fire Barrier Cast-In Device Height Adaptors are part of a 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.