Designed for the most severe jobs in mining, quarries, industrial and construction service, this mandrel built hose has a high margin of safety and gives a long and trouble-free service under the most arduous working conditions. Temperature range : -40 to 248° F Construction : Tube : Black, smooth, synthetic rubber heat and oil mist resistant (SBR) Reinforcement : Plies of steel wire cord Cover : Yellow, smooth (wrapped finish) long lasting synthetic rubber, weather, abrasion and tearing resistant (EPDM)