The EasyHeat AHB automatic electric water pipe heating cable is a preassembled 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. They are suitable for commercial and residential metal or plastic water supply pipes subject to freezing temperatures. Fixed Resistance, Pre-terminated. For Commercial and Residential ApplicationsKeeps water flowing at ambient temperatures down to -40 °F (-40 °C)Cables are rated at 7 Watts per 1 ft (0.30 m)Built-in thermostat turns on at +38 °F (+3 °C) or below and turns off at +45 °F (+7 °C) and abovePlugs into a standard 120 Vac outlet, must be GFCI protectedEach cable consists of tough XLPE inner insulation, a continuous ground braid and weather resistant PVC (high-low temperature) outer jacketProtects metal and plastic water-filled pipes up to 1-1/2 in (38.1 mm) in diameterPre-assembled and ready to installIntegral thermostat saves energy by powering the cable only when needed2 foot cable 18/3 cold lead with grounded plug and 9 foot cable heated section length