Uponor offers a new pre-insulated Ecoflex Potable PEX pipe system for underground applications that provides energy-efficient freeze protection in cold climates. Ecoflex features a 1 1/4” service pipe with a 7 W/ft. heat-trace cable that runs the entire length of pipe. Ecoflex is surrounded by multilayer PEX-foam insulation and covered by a corrugated, waterproof HDPE jacket.