Heavy rubber hose lines "RN-F" feature rubber insulation covers and are coated with neoprene rubber. They are resistant to oil, UV rays, and ozone, making them suitable for temperature ranges from -30°C to +60°C. Due to their good mechanical durability, they withstand high demands in both dry and humid environments, as well as in utility water, and can be used permanently outdoors, for example, in agricultural operations or construction sites.