Additional InformationANSI/UL 263|ASTM E84/F876/877/F1807/F3347/F3348/F3253|CAN/ULC S101/S102.2|cNSFus-pw-rfh|CSA B137.5|cWHus Intertek Listed|ICC ES PMG-1015/1038 HUD MR 1276|NSF 14/61|UPC Certified
Marketing InformationViega barrier PEX designates the requirements for Viega barrier cross-linked polyethylene (PEX) tubing for use in hydronic heating and cooling systems. Viega barrier PEX includes an oxygen barrier layer that helps restrict the passage of oxygen through the wall of the tubing. All Viega PEX is manufactured and tested to the requirements of ASTM F876, F877, F3253, F3348 and CSA B137.5 and is CTS-OD (copper tube size - outer dimension controlled) with an SDR (standard dimension ratio) 9 THK wall. Viega barrier PEX is compatible with both Viega PEX press fittings and F1807 PEX crimp fittings. Viega has no control over the quality of other manufacturers, therefore, we do not extend any warranty to those components that are not supplied by Viega.