For severe operating conditions found on stationary engines, construction equipment and off-road vehicle applications. Nitrile tube specially compounded to handle common coolants and additives. Four-ply woven, heavy-duty fabric reinforcement. Neoprene cover resists heat, abrasion and oil. Handles higher temperatures and resists petroleum additives. Reduces water loss from water permeating the hose wall and cover, a distinct advantage over silicone. Engineered to resist electrochemical degradation – the leading cause of hose failure. Caution: Do not use for gasoline or diesel transfer applications.