Strong, non-toxic, flexible and easy to handle PVC compounds reinforced with a rigid PVC spiral helex. Conforms to any shape or contour and is rated for applications that require high temperature and pressure capabilities. Specifically sized to be glued over barbs or into standard PVC fittings. Designed for use with spa, jelled tub or whirlpools. Heavy construction, used as a light suction or vacuum discharge hose. Shore A, Durometer, 75±3 hardness. Brittle at -70° Fahrenheit, 150° max operating temperature. 3 in to 5 in bend radius. White.