The Jones Stephens 4 1/8" ID x 3/4" Wall Double Seal Rubber Insulation is designed for effective thermal insulation in plumbing and HVAC applications. This high-quality rubber insulation provides excellent thermal resistance, ensuring energy efficiency and reduced heat loss. The double seal design enhances durability and performance, making it ideal for both residential and commercial use. With a robust construction, it meets industry standards for insulation materials, ensuring compliance with ISO and ANSI regulations. This insulation is easy to install and fits standard piping sizes, making it a versatile choice for various projects.