Pex-Al-Pex is a composite pipe that combines the advantages of metal and plastic pipe into an innovative and universal piping solution for all your radiant heating. 
Pex-Al-Pex multi-layered composite pipe consists of an overlapped welded aluminum core with an inner and outer layer composed of cross linked polyethylene.  The inner welded layer of aluminum makes

Pex-Al-Pex 100% oxygen tight, providing longer life for the heating system components.

For Heating Purposes Only.  Not Certified for Potable Water.