When it comes to flexible hose, there are several options that you can choose from. PVC stretches and becomes stiff at certain temperatures, so you may need to choose a larger size than what is normally required. In addition, if you need a hose that can handle high pressure, you may want to go with a steel wire reinforced hosing instead.
PVC high pressure hoses are very popular for industrial and even commercial applications. While the hose itself can be made of many different materials including brass, steel or copper, the most popular material by far is clear plastic (also called polyvinyl chloride or PVC).