fixed water pipes to -- 50F. Simply on, insulate and plug in. for use on metal and rigid impressible pipes. an account Press-To-Test button so you can test the cable before installing. A intrinsic thermostat the cable on at 38F. Proven low-wattage design up to 65 percent less energy at 2 watts a foot vs. strange cables at 7 watts a foot, and protects to -- 50F. An account power fall glows when the thermostat is closed. Each package one ready-to-install pipe heating cable along with installation instructions. To install, you will also need PVC/electrical tape, fiberglass pipe, a tape measure and eye protection. : This cable has been designed for the restore purpose of preventing metal and rigid impressible water filled lines from freezing. DO NOT this product on fuel lines, drain lines, hoses or buried pipes. Fiberglass pipe wrap is to fill out the installation. and follow all instructions. Cables are in versatile lengths. chart to determine the length required for your application.