The 12 FT 3-1/2 ID X 2 Wall Self-Seal Black Rubber Insulation Tube with Tape from JONES STEPHENS CORP is designed for effective thermal insulation in HVAC and plumbing applications. This self-sealing tube features a 3-1/2 inch inner diameter and a 2 inch wall thickness, providing excellent insulation properties. Made from high-quality black rubber, it offers durability and resistance to moisture and temperature fluctuations. The included tape ensures easy installation and a secure seal, making it ideal for both residential and commercial projects. This insulation tube meets industry standards for performance, ensuring energy efficiency and cost savings.