Features Fixed Resistance, Pre-terminated. For Commercial and Residential Applications Keeps 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 above Plugs into a standard 120 Vac outlet, must be GFCI protected Each cable consists of tough XLPE inner insulation, a continuous ground braid and weather resistant PVC (high-low temperature) outer jacket Protects metal and plastic water-filled pipes up to 1-1/2 in (38.1 mm) in diameter Pre-assembled and ready to install Available in 3 ft (0.9 m) increments up to 18 ft (5.5 m) and longer increments up to 80 ft (24.4 m) Integral thermostat saves energy by powering the cable only when needed One year limited warranty