Icetube - the same high quality of Iceline with a different name. Icetube lowers the temperature of the nutrient solution in your system using a simple but effective dual-core design. A white outer layer reflects light and lowers heat levels within the pipe, while the black inner layer protects against UV. This has a profound effect on the overall temperature of your nutrients. Lower nutrient temps (18°C) mean fewer problems and healthier plants. If nutrient temps exceed 21°C, the quantity of dissolved oxygen that your nutrient solution can hold is drastically reduced and your reservoir becomes a breeding ground for pathogenic bacteria and fungi. Every degree counts, especially during the summer – Icetube piping could well be the difference between a completely failed crop and a bumper harvest.