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 excellent mechanical durability, they can 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.