Danfoss RX Roof & Gutter Cables provide the protection needed to prevent ice dams and build-up from damaging residential buildings, roofs and gutters.  RX constant watt heating cables ensure maximum energy efficiency and are designed for use with metal or asphalt roofing.  Durable, high quality materials provide excellent moisture, corrosion and impact protection.  Simply plug the RX cables directly to the power receptacle.