1/2″ Rehau Raupex Oxygen Barrier PEX-a Tubing 300 Feet RAUPEX O2 barrier PEXa pipe provides an extra layer of protection with its co-extruded ethylene-vinyl alcohol (EVOH) oxygen diffusion barrier, which limits oxygen permeability. The main component in the hydronic and radiant heating and cooling systems, this durable yet flexible PEXa pipe offers enhanced temperature/pressure capabilities and long-term strength. Technical Information Raupex O2 Barrier Submittal
