Freeze Free self-regulating heating cable produces only the heat that is needed, where and when it is needed, to prevent pipe freeze-up. Protects plastic and metal water pipes to -60 degrees Fahrenheit. Do not use where cable can get wet or on buried pipes. Easy to install, use with Freeze Free fused plug kit. Can be cut to exact length required. 120 volts at 50 degrees Fahrenheit. UL (Underwriter's Laboratories) listed.