The 30 FT Semi-Slit Black Poly Pipe Insulation Tube features a 4-1/8" inner diameter and a 1/2" wall thickness, designed for effective thermal insulation in plumbing systems. Manufactured by Jones Stephens, this product is ideal for protecting pipes from temperature fluctuations and condensation. The semi-slit design allows for easy installation over existing pipes, ensuring a snug fit. This insulation tube is made from high-quality polyethylene, providing excellent durability and resistance to moisture. It is suitable for both residential and commercial applications, enhancing energy efficiency.