Heat-Line offers the finest self-regulating heating cables that can be used in many different transportation applications including; trailers, RV's and the trucking industry. EXT5R and Paladin systems provide external freeze protection for all metallic and non-metallic pipes utilizing self-regulating heating cable technology for your trailer or RV. These systems are used extensively for water supply pipes from source to trailer and can also be used in many other applications. These systems can be used to protect sewage and drainage lines, valves and even sewage forced mains from freezing. Kompensator systems are 12 volt and 24 volt self-regulating heating cables compatible with alternator systems used in transportation vehicles. These efficient, low voltage cables can be directly connected without the use of inverters. Kompensator heaters can be custom designed to fit many applications including water pipe freeze protection, condensate and gas tube freeze prevention, hydraulic hose cold weather viscosity maintenance and many other transportation comfort and freeze protection requirements.