18" pipe heating cable. Cable installs fast and easy. Each package contains grounded plug, built-in thermostat and instructions. Cable has weather-resistant PVC outer jacket and inner insulation. Keeps water flowing down to -40 deg. F. Features power indicator light , 3-wire grounded cord, and plug. 7W per foot, 120V. Approved for rigid plastic and metal pipe. UL listed. Size: 18", Voltage: 120", Wattage: 7W per foot, Temperature Rating: -40 deg F No. AHB124: Size: 24", Voltage: 120", Wattage: 7W per foot, Temperature Rating: -40 deg F No. AHB130: Size: 30", Voltage: 120", Wattage: 7W per foot, Temperature Rating: -40 deg F