The 48' 3-5/8" ID x 1/2" Wall Semi-Slit Pipe Insulation from Braxton Harris is perfect for thermal insulation in plumbing and HVAC systems. This semi-slit design allows for easy application around existing pipes, making installation straightforward. With a wall thickness of 1/2", it offers superior thermal resistance, effectively maintaining pipe temperatures and minimizing energy loss. Constructed from high-quality materials, this insulation is built to last and meets industry standards for performance and safety. Ideal for both commercial and residential projects.