Count on the AHB series for water pipe heating cable that’s ready to use out of the box. An integral energy saving thermostat controls the AHB cable to automatically protect water pipes when the temperature dips into the critical range. There’s no easier, more effective do it yourself solution for safeguarding water pipes in cold climates. Suitable for commercial and residential metal or plastic water supply pipes vulnerable to freezingApproved for rigid plastic and metal pipe up to 1-1/2" diameterCable consists of tough XLP inner insulation, a continuous ground braid and weather-resistant PVC outer jacket .Keeps water flowing down to -40 degrees FahrenheitUL Listed to Canadian Safety Standards and CSA certified when used in accordance with instructions on water-filled metal or plastic pipesRelated Products: It is recommend to use of HCA application tape or good quality electrical tape with high temperature rating of +176 degees F.UL (Underwriter's Laboratories) listed