Our PEX Pipe with an EVOH Oxygen Barrier is specifically engineered to protect and prolong the life of your hydronic heating system. The external EVOH (Ethylene Vinyl Alcohol) layer blocks oxygen diffusion, preventing the rust and corrosion of vital iron components like boilers and pumps. This ensures your system runs silently and at peak efficiency for years to come. Ideal for radiant floor heating and other closed-loop applications, this pipe is the professional's choice for a durable, low-maintenance installation.