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Uponor Combi Pipes Blue in Conduit are made of cross-linked polyethylene and are part of Uponor’s Drinking Water, Local Heat Distributions and Underfloor Heating product groups. Uponor Combi Pipes Blue in Conduit are used for tap water and heating systems. Uponor Combi Pipes Blue in Conduit has an oxygen diffusion barrier of Ethyl Vinyl Alcohol extruded seamless on the outside of the pipe. Uponor Combi Pipes Blue in Conduit has very good long-term properties, is corrosion resistant and has a low roughness coefficient. The pipe also has the advantage of not being affected by high water speeds or aggressive water, not emitting taste, smell, heavy metals or harmful substances into drinking water. Uponor Combi Pipes Blue in Conduit are treated in accordance with the new hygienic requirement in the Positive Lists for Organic Materials, 4MS Common Approach. Renewable PE raw material for the pipe is based on the Bornewables™ product range supplied by Borealis. These raw materials are made using sustainably sourced renewable feedstocks derived solely from waste and residue vegetable oils, such as used cooking oil and residues from vegetable oil processing. The residue from vegetable oil processing consists of rancid fat that has to be removed to produce food-grade oil. The used cooking oil, entirely waste and residues in origin, is a waste stream collected from restaurants and the food industry. The waste and residue raw materials that are used to produce our feedstock are no longer fit for human consumption, and as such, do not impact food security.