This 150-foot semi-slit pipe insulation features a 1-3/8" inner diameter and a 1/2" wall thickness, designed for effective thermal insulation. Made from durable materials, it helps reduce heat loss and condensation on pipes, ensuring energy efficiency. Ideal for HVAC systems and plumbing applications, this insulation meets industry standards for performance and safety. Its semi-slit design allows for easy installation over existing pipes, making it a practical choice for both residential and commercial projects.