coolant hose the product is designed for such surfaces as cooling medium ejection, cooling by blowing and washing coolant hosehei liancheng machine tool accessories co.,ltd ,is a manufacture of coolant hose ,we have various type of the coolant hose , such as 1/4 series ,3/8 series , 1/2 series , 3/4 series , and so on ,if you are interested in our products ,feel free to contact with me .