The 4.500" INSR SDR 11.5 RED from Dresser Industries is an insert designed for SDR 11.5 piping systems. This product is made from high-density polyethylene, providing excellent durability and resistance to environmental stressors. The red color signifies its specific application, making it easy to identify in various installations. With a size of 4.500 inches, it is suitable for a range of applications, including water distribution and drainage. This insert complies with industry standards, ensuring reliable performance and safety in all uses.