The Uponor Ecoflex® Video displays all the benefits of our pre-insulated pipe system — lightweight, strong, flexible, durable. Ecoflex pre-insulated pipe is the ideal system solution for direct-burial heating, cooling and hot-water commercial and residential applications. Ecoflex consists of one or two Uponor PEX service pipes surrounded by multilayer PEX-foam insulation and covered by a waterproof, corrugated HDPE jacket.