Easy Heat pipe heating cable installs quickly and easily to keep water flowingIncludes grounded plug built in thermostat and instructionsEach cable consists of tough PVC inner insulation a continuous ground braid and weather-resistant PVC outer jacket AHB units are activated and de-activated by an integral energy-saving thermostatApproved for rigid plastic and metal pipe80 foot length UL listed Whats In The Box:Easy Heat AHB-180 Cold Weather Valve and Pipe Heating Cable.