The Jones Stephens 18 FT Self-Seal Black Rubber Insulation Tube features a 2-inch inner diameter and a 2-inch wall thickness, designed for optimal thermal insulation. This durable tube is made from high-quality rubber, ensuring excellent resistance to heat and moisture. Ideal for HVAC applications, it helps maintain energy efficiency by reducing heat loss. The self-sealing design simplifies installation, making it a convenient choice for contractors and DIY enthusiasts alike. Compliant with industry standards, this insulation tube is perfect for both residential and commercial use.