EasyHeat AHB automatic electric water pipe heating cable is a pre-assembled and ready to install, cable that prevents metal and plastic pipes from freezing. These units are activated and de-activated by an integral energy saving thermostat.Freeze protection for water supply pipesFixed resistancePre-terminated length of 3 ftUL listed to Canadian safety standards and CSA certified when used in accordance with instructions on water filled metal or plastic pipesActivated and de-activated by an integral energy saving thermostatBuilt-in thermostatKeeps water flowing at ambient temperatures down to 40 deg C