Additional InformationCSA B137.5|ASTM E84|UL 263|NSF Certified
Marketing InformationWatts Radiant™ RadiantPEX+™ is cross linked polyethylene tubing used for radiant floor heating, snow melting and distribution piping. RadiantPEX+™ is manufactured with an integral ethylene vinyl alcohol (EVOH) DIN Standard O2 barrier that limits oxygen diffusion through the walls of the tubing to less than 0.10g/m3/day at 104 deg F water temperature. RadiantPEX+™ adds a protective polypropylene layer to the outside of the EVOH oxygen barrier.