Since this cable regulates its own heat output, it reduces power consumption, and a thermostat may not be necessary for some freeze protection applications. Operating on 120 Volts AC, Freeze Free cables are suitable for use on plastic and metal water pipes up to 2-inches in diameter. EasyHeat Freeze Free heating cables featuring a special self-regulating core that adjusts according to the surrounding temperatures to... EasyHeat Freeze Free heating cables featuring a special self-regulating core that adjusts according to the surrounding temperatures to ensure the right amount of heat when and where it is needed. Pre-Cut Roll of Easy Heat Self Regulating Heating Cable! Easy Heat AHB-124 24' Automatic Pipe Heating Freeze Protection Cable With Thermostat Quantity Of 4 Internal Heat Tape For Water Lines Heat Tape Easy Heat Freeze Protection Cable Waterline Heater Pre Cut To 4 Foot Includes Installed Plug Head Easy Heat Heat Tape Plug Head & End Caps Pre-Installed! ProMaster - 82mm Protection HGX Prime It also means that the cable can be safely overlapped when installed on plumbing pipes, valves or flanges.