The Climaflex Lagging 1/2" x 9mm helps control heat loss in your pipes, reducing the energy spent on heating water. This has a positive effect on your heating bills and carbon footprint. It also prevents condensation on the pipes and helps protect them from freezing in cold climates. Suitable for use with steel, copper, and plastic pipework, the closed-cell PE foam retains heat effectively. Pre-slit, this product is ready to fit. It is available in black and comes in a size of 1/2" x 9mm, with a length of 2m.