This strong, reliable Whale WHALEX Tubing is made of polyethylene and it has a versatile interior diameter of 15mm. This color-coded, semi-rigid pipework delivers outstanding performance in a wide variety of applications. It can handle liquids to maximum temperatures of 180°F (65°C) hot water, and 68°F (20°C) cold water. Its maximum pressure ratings are 90 psi (6 bar) for hot water, and 180 psi (12 bar) for cold water. It comes in a 164-foot (50m) length. Whale designs and manufactures reliable marine water system products which are easy to install and use; providing boaters with hot and cold water, waste management and durable bilge pumps for peace of mind.