This 3-1/8" ID x 1/2" Wall Self Seal Pipe Insulation is designed to enhance energy efficiency and prevent heat loss in plumbing systems. Each carton contains eight pieces, making it ideal for larger projects. The self-sealing feature simplifies installation, ensuring a snug fit around pipes without the need for additional adhesives. Made from high-quality materials, this insulation is durable and resistant to moisture, preventing mold growth. Suitable for both residential and commercial applications, it helps maintain optimal temperatures in hot and cold water pipes.