... on both end size: 1/4",5/16",3/8" Tube : Black or other colors flexible PVC. High Pressured Spray Hose(Yellow ... .Tube : Black or other colors flexible PVC.3.Reinforcement : High tensile synthetic fibre spiraled .4.Cover : Yellow flexible PVC ,surfaces of cover can ... alkali resistant and corrosion resistant .Its of high pressure bearable ,flexible ,light in weight ,anti-bending and nice bright surface.6 ...