Polyethene insulation used for insulation wherever the resistance to mechanical damage and resistance to the dew effects is required. It is used for insulating pipes for hot and cold water in heating and sanitation technology. It is characterized by simple and easy installation, as well as a quick return on investment and care for the environment (it is 100% recyclable). The 2m Grey Polyethene has a pre cut slit down the insulation to wrap/slid over the pipe you are covering to which this would be 15/22/28mm Pipe. The wall thickness can also be in a 9 or 13mm wall meaning better insulation for your needs, under floor boards, or exposed pipes such as outside copper pipe. Pack Size : 1x 2m Length (2m) 2x 2m Length (4m) 5x 2m Length (10m) 10x 2m Length (20m) In 15/22/28mm Size.