Chromalox Thermwire Pre-assembled cables provide safe, reliable freeze protection for light commercial and residential piping. These products are provided with factory terminated 3 foot cord set/plug and end seal for a complete, easy to install heat trace system. Power output is 5 watts per foot @ 50°F and allows freeze protection of metal and plastic pipes up to 2.5” diameter. Thermwire Pre-assembled cables are third party tested & list by UL & CSA for safe, reliable protection of your piping.